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Finding the Fourth Proportional to 6,608.80, 9,120.12 and 3,624.56

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Solution

The fourth proportional to 6,608.80, 9,120.12 and 3,624.56 is: 5,001.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,608.80 : 9,120.12 = 3,624.56 : x
  2. Step 2: Convert to fraction form
    6,608.80/9,120.12 = 3,624.56/x
  3. Step 3: Cross multiply
    6,608.80x = 9,120.12 × 3,624.56
  4. Step 4: Simplify right side
    6,608.80x = 33,056,422.15
  5. Step 5: Solve for x
    x = 33,056,422.15/6,608.80
  6. Step 6: Final answer
    x = 5,001.88

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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.