Home / 3,619.27-4,990.21-3,058.75

Finding the Fourth Proportional to 3,619.27, 4,990.21 and 3,058.75

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Solution

The fourth proportional to 3,619.27, 4,990.21 and 3,058.75 is: 4,217.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,619.27 : 4,990.21 = 3,058.75 : x
  2. Step 2: Convert to fraction form
    3,619.27/4,990.21 = 3,058.75/x
  3. Step 3: Cross multiply
    3,619.27x = 4,990.21 × 3,058.75
  4. Step 4: Simplify right side
    3,619.27x = 15,263,804.84
  5. Step 5: Solve for x
    x = 15,263,804.84/3,619.27
  6. Step 6: Final answer
    x = 4,217.37

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.