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Finding the Fourth Proportional to 6,640.23, 9,966.50 and 3,355.62

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Solution

The fourth proportional to 6,640.23, 9,966.50 and 3,355.62 is: 5,036.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,640.23 : 9,966.50 = 3,355.62 : x
  2. Step 2: Convert to fraction form
    6,640.23/9,966.50 = 3,355.62/x
  3. Step 3: Cross multiply
    6,640.23x = 9,966.50 × 3,355.62
  4. Step 4: Simplify right side
    6,640.23x = 33,443,769.95
  5. Step 5: Solve for x
    x = 33,443,769.95/6,640.23
  6. Step 6: Final answer
    x = 5,036.54

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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.