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Finding the Fourth Proportional to 3,702.56, 5,553.95 and 1,621.49

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Solution

The fourth proportional to 3,702.56, 5,553.95 and 1,621.49 is: 2,432.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,702.56 : 5,553.95 = 1,621.49 : x
  2. Step 2: Convert to fraction form
    3,702.56/5,553.95 = 1,621.49/x
  3. Step 3: Cross multiply
    3,702.56x = 5,553.95 × 1,621.49
  4. Step 4: Simplify right side
    3,702.56x = 9,005,665.42
  5. Step 5: Solve for x
    x = 9,005,665.42/3,702.56
  6. Step 6: Final answer
    x = 2,432.28

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1.5x scale

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.