A ratio is a comparison of values. In other words, 'A ratio says how much of one thing there is compared to another one'.
There are \(2\) eggs and \(3\) cups of flour.
Ratios can be shown in a variety of ways:
  • Use "\(:\) "to set the values as \(2\)\(:\)\(3\).
  • Or maybe we can use the word "to" as \(2\) to \(3\).
  • Or write it down as a fraction \(\frac {2}{3}\).
Proportion states two ratios (or fractions) are the same.
From the above picture, we can easily understand that \(\frac {2}{3}\) \(=\) \(\frac {4}{6}\).
Therefore, \(2\) eggs out of \(3\) cups of flour is equal to \(4\) eggs out of  \(6\) cups of flour.
The ratios are the same. So, they are in proportion.