Ratio and Proportion Formula Concepts of Ratio and Proportion. The ratio can be expressed in two ways such as ab or ab. A proportion is read as x is to y as z is to w.
Using ratio proportion formula actually makes our work much easier and we save a lot of time.
It is denoted as a separation between the numbers with a colon. Ratio and proportion is an important topic of aptitude and all exams have questions from this topic. When one of the four numbers in a proportion is unknown cross products may be used to find the unknown number. Whereas a ratio is single fraction by itself eg.