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Finding the Fourth Proportional to 6,349.76, 8,766.56 and 5,028.80

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Solution

The fourth proportional to 6,349.76, 8,766.56 and 5,028.80 is: 6,942.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,349.76 : 8,766.56 = 5,028.80 : x
  2. Step 2: Convert to fraction form
    6,349.76/8,766.56 = 5,028.80/x
  3. Step 3: Cross multiply
    6,349.76x = 8,766.56 × 5,028.80
  4. Step 4: Simplify right side
    6,349.76x = 44,085,276.93
  5. Step 5: Solve for x
    x = 44,085,276.93/6,349.76
  6. Step 6: Final answer
    x = 6,942.83

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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.