Question Change camera distance based on screen width

Hi everyone!

I'm trying to make the GameObjects of my game to fit the screen width at different resolutions, but I'm struggling to calculate the correct Z distance of my camera. The goal is to achieve something like this:



So the camera should be closer or further away from the GameObjects depending on the screen width. Any ideias on how to calculate de Z distance so the GameObjects fill the entire width?

 

https://docs.unity3d.com/Manual/FrustumSizeAtDistance.html

 

Exactly what I needed, thanks!