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Finding the Fourth Proportional to 3,572.28, 4,931.82 and 2,627.28

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Solution

The fourth proportional to 3,572.28, 4,931.82 and 2,627.28 is: 3,627.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,572.28 : 4,931.82 = 2,627.28 : x
  2. Step 2: Convert to fraction form
    3,572.28/4,931.82 = 2,627.28/x
  3. Step 3: Cross multiply
    3,572.28x = 4,931.82 × 2,627.28
  4. Step 4: Simplify right side
    3,572.28x = 12,957,272.05
  5. Step 5: Solve for x
    x = 12,957,272.05/3,572.28
  6. Step 6: Final answer
    x = 3,627.17

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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.