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Finding the Fourth Proportional to 3,963.60, 5,945.46 and 1,499.58

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Solution

The fourth proportional to 3,963.60, 5,945.46 and 1,499.58 is: 2,249.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,963.60 : 5,945.46 = 1,499.58 : x
  2. Step 2: Convert to fraction form
    3,963.60/5,945.46 = 1,499.58/x
  3. Step 3: Cross multiply
    3,963.60x = 5,945.46 × 1,499.58
  4. Step 4: Simplify right side
    3,963.60x = 8,915,692.91
  5. Step 5: Solve for x
    x = 8,915,692.91/3,963.60
  6. Step 6: Final answer
    x = 2,249.39

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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.