Home / 5,715.29-7,881.96-3,591.02

Finding the Fourth Proportional to 5,715.29, 7,881.96 and 3,591.02

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Solution

The fourth proportional to 5,715.29, 7,881.96 and 3,591.02 is: 4,952.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,715.29 : 7,881.96 = 3,591.02 : x
  2. Step 2: Convert to fraction form
    5,715.29/7,881.96 = 3,591.02/x
  3. Step 3: Cross multiply
    5,715.29x = 7,881.96 × 3,591.02
  4. Step 4: Simplify right side
    5,715.29x = 28,304,276.00
  5. Step 5: Solve for x
    x = 28,304,276.00/5,715.29
  6. Step 6: Final answer
    x = 4,952.38

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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.