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Finding the Fourth Proportional to 6,272.60, 8,655.84 and 3,478.28

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Solution

The fourth proportional to 6,272.60, 8,655.84 and 3,478.28 is: 4,799.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,272.60 : 8,655.84 = 3,478.28 : x
  2. Step 2: Convert to fraction form
    6,272.60/8,655.84 = 3,478.28/x
  3. Step 3: Cross multiply
    6,272.60x = 8,655.84 × 3,478.28
  4. Step 4: Simplify right side
    6,272.60x = 30,107,435.16
  5. Step 5: Solve for x
    x = 30,107,435.16/6,272.60
  6. Step 6: Final answer
    x = 4,799.83

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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.