See the Draw Guide
here and check if it does what you want to do. You will note that
Chapter 10 - Advanced Draw Techniques has
eight pages dedicated to drawing to scale.
You will almost certainly be better using a CAD package (DraftSight, DoubleCAD, LibreCAD etc are free CAD packages) as you will have probably better control of the curves and find the user interface easier to work with. CAD packages will also calculate areas and handle scales (1:200 etc) better and output to drawing sheets.