# Solving Proportions - PowerPoint PPT Presentation

1 / 7

Solving Proportions. Section 5.2. Objectives. Determine whether a proportion is true or false Solve a proportion. Objective 1: Determine whether a proportion is true or false. Objective 1. Proportions states two ratios are equal

## Related searches for Solving Proportions

I am the owner, or an agent authorized to act on behalf of the owner, of the copyrighted work described.

Solving Proportions

Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author.While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server.

- - - - - - - - - - - - - - - - - - - - - - - - - - E N D - - - - - - - - - - - - - - - - - - - - - - - - - -

## Solving Proportions

Section 5.2

### Objectives

• Determine whether a proportion is true or false

• Solve a proportion

## Objective 1: Determine whether a proportion is true or false

### Objective 1

• Proportions states two ratios are equal

• Cross multiplication – checks whether proportion is true or false

• Cross multiplication is shortcut for converting both fractions to have common denominator and checking that numerators match

### Objective 1

• To check whether proportion is true or false

• Check that ratios or rates have same units

• Cross multiply

• If cross products are equal, proportion is true

## Objective 2:Solve a proportion

### Objective 2

• If three numbers of proportion are given, you can find the fourth

• To solve a proportion

• Cross multiply

• Do related division to find missing number