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Finding the Fourth Proportional to 6,331.41, 8,737.79 and 3,679.65

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Solution

The fourth proportional to 6,331.41, 8,737.79 and 3,679.65 is: 5,078.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,331.41 : 8,737.79 = 3,679.65 : x
  2. Step 2: Convert to fraction form
    6,331.41/8,737.79 = 3,679.65/x
  3. Step 3: Cross multiply
    6,331.41x = 8,737.79 × 3,679.65
  4. Step 4: Simplify right side
    6,331.41x = 32,151,990.58
  5. Step 5: Solve for x
    x = 32,151,990.58/6,331.41
  6. Step 6: Final answer
    x = 5,078.17

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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.