Wave Optics

In Young's double slit experiment, the fifth maximum with wavelength '\(\lambda_1\)' is at a distance '\(y_1\)' and the same maximum with wavelength '\(\lambda_2\)' is at a distance '\(y_2\)' measured from the central bright band. Then \(\frac{y_1}{y_2}\) is equal to [D and \(d\) are constant]