ROT: Rule Of Three 與 Reserva Unidades Server 使用情況與統計

The simple rule of 3 is an operation that helps us quickly solve problems of proportionality, both direct and inverse. To make a simple rule of three we need 3 numbers: two magnitudes proportional to each other, and third magnitude. From there, we will find out the fourth term of proportionality. ROT Calculator will help you calculate a lot of values quickly!