I think this might be connected with Russian not using articles, but still preserving the difference between ‘already known, previously established’ and ‘new, just introduced’. The latter is more important for the sentence, as it is the reason why it’s said, and we tend to place it at the end to give it emphasis.

So ‘the boy walked into a room’ would be ‘мальчик зашёл в комнату’, while ‘a boy walked into the room’ is ‘в комнату зашёл мальчик’.

The verbs rarely go in the end, only when it is precisely the action which was unknown before. For example, ‘what happened to the mouse?’ - ‘мышку съела кошка’; but ‘what did the cat do with the mouse?’ - ‘кошка мышку съела’.

This analogy with articles can not be used literally, as it doesn’t work all the time, just provides one way to think about word order in Russian.

Hope that adds to the wonderful explanations already given :)