# Proportions

## Chapter 5 Lesson 2

## Proportion

An equation that states that two ratios are equal. If two quantities form a proportion they are said to be proportional.

## To determine if a set of numbers are proportional:

- Use cross products - multiply diagonally across and see if your numbers are equal
- See if they form equivalent ratios - put both ratios in simplest form

Methods of Determining if Proportions are True 5.3