The sensitivity in the game does not move 1 pixel for every count (unless configured to do so).
You can try to divide your target distance by the pixel ratio in the output here, this calculation is assuming as you say everything is set to their default values, even FOV: https://www.mouse-sensitivity.com/?share=a406004d416da2cd49087064e2fc3203
So do 190/5.61~34 and 4/5.61~1, so move [34,1] instead.
Or you can set the X and Y sensitivity to 16, which with your settings will approximately equal 1 pixel per count.