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Finding the Fourth Proportional to 6,654.98, 9,982.47 and 3,143.83

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Solution

The fourth proportional to 6,654.98, 9,982.47 and 3,143.83 is: 4,715.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,654.98 : 9,982.47 = 3,143.83 : x
  2. Step 2: Convert to fraction form
    6,654.98/9,982.47 = 3,143.83/x
  3. Step 3: Cross multiply
    6,654.98x = 9,982.47 × 3,143.83
  4. Step 4: Simplify right side
    6,654.98x = 31,383,172.94
  5. Step 5: Solve for x
    x = 31,383,172.94/6,654.98
  6. Step 6: Final answer
    x = 4,715.75

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Similar ratio
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1.5x scale

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.