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Finding the Fourth Proportional to 3,702.64, 5,553.96 and 1,512.40

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Solution

The fourth proportional to 3,702.64, 5,553.96 and 1,512.40 is: 2,268.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,702.64 : 5,553.96 = 1,512.40 : x
  2. Step 2: Convert to fraction form
    3,702.64/5,553.96 = 1,512.40/x
  3. Step 3: Cross multiply
    3,702.64x = 5,553.96 × 1,512.40
  4. Step 4: Simplify right side
    3,702.64x = 8,399,809.10
  5. Step 5: Solve for x
    x = 8,399,809.10/3,702.64
  6. Step 6: Final answer
    x = 2,268.60

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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.