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Finding the Fourth Proportional to 3,539.67, 5,309.52 and 1,591.39

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Solution

The fourth proportional to 3,539.67, 5,309.52 and 1,591.39 is: 2,387.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,539.67 : 5,309.52 = 1,591.39 : x
  2. Step 2: Convert to fraction form
    3,539.67/5,309.52 = 1,591.39/x
  3. Step 3: Cross multiply
    3,539.67x = 5,309.52 × 1,591.39
  4. Step 4: Simplify right side
    3,539.67x = 8,449,517.03
  5. Step 5: Solve for x
    x = 8,449,517.03/3,539.67
  6. Step 6: Final answer
    x = 2,387.09

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Similar ratio
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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.