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Finding the Fourth Proportional to 5,427, 7,489.67 and 3,331.53

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Solution

The fourth proportional to 5,427, 7,489.67 and 3,331.53 is: 4,597.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,427 : 7,489.67 = 3,331.53 : x
  2. Step 2: Convert to fraction form
    5,427/7,489.67 = 3,331.53/x
  3. Step 3: Cross multiply
    5,427x = 7,489.67 × 3,331.53
  4. Step 4: Simplify right side
    5,427x = 24,952,043.64
  5. Step 5: Solve for x
    x = 24,952,043.64/5,427
  6. Step 6: Final answer
    x = 4,597.76

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.