Title: The Basics: Proportions - What is a Proportion?
Course: Open ELT106 Fundamentals of DC/AC > Section: Math Refresher for Module 1

 | The Basics:   What is a Proportion?

A proportion shows equality between two ratios.   (Remember, a ratio shows a comparison between two quantities that are the same units shown as a fraction, using the word to, or a colon (:) between that quantities.)

A proportion is most often written in fraction form with an equal sign between them.

Watch these helpful Khan Academy videos for more information:

1.  Understanding Proportions

2.  Ratio and Proportion

3.  Writing proportions

Now move on to the energy technology video demonstrations. When you are ready, take the practice quiz to show what you know. If you think you need more practice, ask your instructor if the optional practice assignments would help you.