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Finding the Fourth Proportional to 2,375.60, 3,563.96 and 914.80

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Solution

The fourth proportional to 2,375.60, 3,563.96 and 914.80 is: 1,372.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,375.60 : 3,563.96 = 914.80 : x
  2. Step 2: Convert to fraction form
    2,375.60/3,563.96 = 914.80/x
  3. Step 3: Cross multiply
    2,375.60x = 3,563.96 × 914.80
  4. Step 4: Simplify right side
    2,375.60x = 3,260,310.61
  5. Step 5: Solve for x
    x = 3,260,310.61/2,375.60
  6. Step 6: Final answer
    x = 1,372.42

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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.