If ` x prop y, y prop z ` and ` z prop x, ` then find the product of three non-zero variation constant.

Explanation

`x prop y rArr x = k_1y(K_1 =` non- zero variation constant )
`rArr k_1 = x/y ….. (1)`
`y prop z rArr k_2 z (k_2= ` non-zero variation constant )
`rArr k_1 =y/z …….. (2)`
`z prop x rArr z = k_2 x (k_3 ` non - zero variation constant )
`rArr k_3 = z/x ....... (3)`
now multiplying (1),(2) and (3) we get `k_1k_2 k_3 = x/y xx y/z xx z/x `
or d`k_1 k_2 k_3= 1 `
Hence the produc of non- zero variation constant is 1.