Home / 3,839.17-5,299.02-2,720.29

Finding the Fourth Proportional to 3,839.17, 5,299.02 and 2,720.29

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Solution

The fourth proportional to 3,839.17, 5,299.02 and 2,720.29 is: 3,754.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,839.17 : 5,299.02 = 2,720.29 : x
  2. Step 2: Convert to fraction form
    3,839.17/5,299.02 = 2,720.29/x
  3. Step 3: Cross multiply
    3,839.17x = 5,299.02 × 2,720.29
  4. Step 4: Simplify right side
    3,839.17x = 14,414,871.12
  5. Step 5: Solve for x
    x = 14,414,871.12/3,839.17
  6. Step 6: Final answer
    x = 3,754.68

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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.