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Finding the Fourth Proportional to 6,321.66, 8,724.68 and 3,805.08

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Solution

The fourth proportional to 6,321.66, 8,724.68 and 3,805.08 is: 5,251.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,321.66 : 8,724.68 = 3,805.08 : x
  2. Step 2: Convert to fraction form
    6,321.66/8,724.68 = 3,805.08/x
  3. Step 3: Cross multiply
    6,321.66x = 8,724.68 × 3,805.08
  4. Step 4: Simplify right side
    6,321.66x = 33,198,086.35
  5. Step 5: Solve for x
    x = 33,198,086.35/6,321.66
  6. Step 6: Final answer
    x = 5,251.48

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.