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Finding the Fourth Proportional to 3,702.78, 5,553.63 and 1,237.55

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Solution

The fourth proportional to 3,702.78, 5,553.63 and 1,237.55 is: 1,856.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,702.78 : 5,553.63 = 1,237.55 : x
  2. Step 2: Convert to fraction form
    3,702.78/5,553.63 = 1,237.55/x
  3. Step 3: Cross multiply
    3,702.78x = 5,553.63 × 1,237.55
  4. Step 4: Simplify right side
    3,702.78x = 6,872,867.04
  5. Step 5: Solve for x
    x = 6,872,867.04/3,702.78
  6. Step 6: Final answer
    x = 1,856.14

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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.