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Finding the Fourth Proportional to 6,321.35, 9,481.28 and 3,974.42

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Solution

The fourth proportional to 6,321.35, 9,481.28 and 3,974.42 is: 5,961.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,321.35 : 9,481.28 = 3,974.42 : x
  2. Step 2: Convert to fraction form
    6,321.35/9,481.28 = 3,974.42/x
  3. Step 3: Cross multiply
    6,321.35x = 9,481.28 × 3,974.42
  4. Step 4: Simplify right side
    6,321.35x = 37,682,612.56
  5. Step 5: Solve for x
    x = 37,682,612.56/6,321.35
  6. Step 6: Final answer
    x = 5,961.17

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Double scale
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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.