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Finding the Fourth Proportional to 6,287.92, 8,677.46 and 3,455.33

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Solution

The fourth proportional to 6,287.92, 8,677.46 and 3,455.33 is: 4,768.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,287.92 : 8,677.46 = 3,455.33 : x
  2. Step 2: Convert to fraction form
    6,287.92/8,677.46 = 3,455.33/x
  3. Step 3: Cross multiply
    6,287.92x = 8,677.46 × 3,455.33
  4. Step 4: Simplify right side
    6,287.92x = 29,983,487.86
  5. Step 5: Solve for x
    x = 29,983,487.86/6,287.92
  6. Step 6: Final answer
    x = 4,768.43

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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.