Anchoring controls

I have a window with a canvas and 4 sliders that manipulate things on the canvas. When a user enlarges the window I want the sliders to enlarge themselves so that the sizes are identical. I fiddled with anchors but I manage to resize 2 sliders correctly, but not 4.

How to do this?

You will need to calculate the width of each slider then shift the slider.Left position and update slider.Width accordingly.

Yes, thought so already. Thanks Jeremy.