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Finding the Fourth Proportional to 7,481.61, 10,324.80 and 4,124.70

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Solution

The fourth proportional to 7,481.61, 10,324.80 and 4,124.70 is: 5,692.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,481.61 : 10,324.80 = 4,124.70 : x
  2. Step 2: Convert to fraction form
    7,481.61/10,324.80 = 4,124.70/x
  3. Step 3: Cross multiply
    7,481.61x = 10,324.80 × 4,124.70
  4. Step 4: Simplify right side
    7,481.61x = 42,586,702.56
  5. Step 5: Solve for x
    x = 42,586,702.56/7,481.61
  6. Step 6: Final answer
    x = 5,692.18

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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.