Home / 9,171.52-13,757.15-2,931.45

Finding the Fourth Proportional to 9,171.52, 13,757.15 and 2,931.45

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Solution

The fourth proportional to 9,171.52, 13,757.15 and 2,931.45 is: 4,397.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,171.52 : 13,757.15 = 2,931.45 : x
  2. Step 2: Convert to fraction form
    9,171.52/13,757.15 = 2,931.45/x
  3. Step 3: Cross multiply
    9,171.52x = 13,757.15 × 2,931.45
  4. Step 4: Simplify right side
    9,171.52x = 40,328,397.37
  5. Step 5: Solve for x
    x = 40,328,397.37/9,171.52
  6. Step 6: Final answer
    x = 4,397.13

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.