The numbers 4 and 9 appear in your numerology chart as your destiny number and your life path number, respectively.

While generally not considered to be a prominent position in a numerology chart, your cornerstone letter is represented by the number 3. I don't see the number 3 at any prominent position.

Being in your numerology chart may provide enough attraction to make those numbers prevalent in your life. Like does attract like.

However, there may be other reasons. The index to articles about frequently seeing certain numbers may lead you to answers that work for you.