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Finding the Fourth Proportional to 5,414.50, 7,472.19 and 3,318.22

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Solution

The fourth proportional to 5,414.50, 7,472.19 and 3,318.22 is: 4,579.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,414.50 : 7,472.19 = 3,318.22 : x
  2. Step 2: Convert to fraction form
    5,414.50/7,472.19 = 3,318.22/x
  3. Step 3: Cross multiply
    5,414.50x = 7,472.19 × 3,318.22
  4. Step 4: Simplify right side
    5,414.50x = 24,794,370.30
  5. Step 5: Solve for x
    x = 24,794,370.30/5,414.50
  6. Step 6: Final answer
    x = 4,579.25

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