So, if you tried to solve The Balancing Ruler Problem, I have a video that shows off the answer I got.
Be advised, this video is totally a spoiler, so if you are wanting to figure it out yourself, do NOT watch the video!
Now, this result surprised me a bit. The prism was located much closer to the center of the ruler than I was expecting. I am going to expand on my confusion and what I did about it next time.