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Finding the Fourth Proportional to 6,679.54, 9,217.99 and 3,847.84

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Solution

The fourth proportional to 6,679.54, 9,217.99 and 3,847.84 is: 5,310.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,679.54 : 9,217.99 = 3,847.84 : x
  2. Step 2: Convert to fraction form
    6,679.54/9,217.99 = 3,847.84/x
  3. Step 3: Cross multiply
    6,679.54x = 9,217.99 × 3,847.84
  4. Step 4: Simplify right side
    6,679.54x = 35,469,332.41
  5. Step 5: Solve for x
    x = 35,469,332.41/6,679.54
  6. Step 6: Final answer
    x = 5,310.14

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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.