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Finding the Fourth Proportional to 5,481.57, 8,225.88 and 5,436.98

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Solution

The fourth proportional to 5,481.57, 8,225.88 and 5,436.98 is: 8,158.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,481.57 : 8,225.88 = 5,436.98 : x
  2. Step 2: Convert to fraction form
    5,481.57/8,225.88 = 5,436.98/x
  3. Step 3: Cross multiply
    5,481.57x = 8,225.88 × 5,436.98
  4. Step 4: Simplify right side
    5,481.57x = 44,723,938.42
  5. Step 5: Solve for x
    x = 44,723,938.42/5,481.57
  6. Step 6: Final answer
    x = 8,158.97

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.