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Finding the Fourth Proportional to 6,640.57, 9,967.03 and 3,355.99

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Solution

The fourth proportional to 6,640.57, 9,967.03 and 3,355.99 is: 5,037.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,640.57 : 9,967.03 = 3,355.99 : x
  2. Step 2: Convert to fraction form
    6,640.57/9,967.03 = 3,355.99/x
  3. Step 3: Cross multiply
    6,640.57x = 9,967.03 × 3,355.99
  4. Step 4: Simplify right side
    6,640.57x = 33,449,253.01
  5. Step 5: Solve for x
    x = 33,449,253.01/6,640.57
  6. Step 6: Final answer
    x = 5,037.11

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Why These Related Problems?

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