Final answer:
As per the values, Maria is currently 6 years old.
Step-by-step explanation:
To solve this problem, we can set up two equations using the given information.
Let's say that Maria's age is x.
According to the problem, Jonathan is four times Maria's age, so his age is 4x.
In 3 years, Jonathan will be three times as old as Maria is then.
This can be written as (4x + 3) = 3(x + 3).
Solving this equation, we get x = 6.
Therefore, Maria is currently 6 years old.