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Finding the Fourth Proportional to 6,400.62, 8,833.25 and 3,882.80

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Solution

The fourth proportional to 6,400.62, 8,833.25 and 3,882.80 is: 5,358.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,400.62 : 8,833.25 = 3,882.80 : x
  2. Step 2: Convert to fraction form
    6,400.62/8,833.25 = 3,882.80/x
  3. Step 3: Cross multiply
    6,400.62x = 8,833.25 × 3,882.80
  4. Step 4: Simplify right side
    6,400.62x = 34,297,774.89
  5. Step 5: Solve for x
    x = 34,297,774.89/6,400.62
  6. Step 6: Final answer
    x = 5,358.51

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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.