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Finding the Fourth Proportional to 6,451.64, 8,908.28 and 4,957.20

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Solution

The fourth proportional to 6,451.64, 8,908.28 and 4,957.20 is: 6,844.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,451.64 : 8,908.28 = 4,957.20 : x
  2. Step 2: Convert to fraction form
    6,451.64/8,908.28 = 4,957.20/x
  3. Step 3: Cross multiply
    6,451.64x = 8,908.28 × 4,957.20
  4. Step 4: Simplify right side
    6,451.64x = 44,160,125.62
  5. Step 5: Solve for x
    x = 44,160,125.62/6,451.64
  6. Step 6: Final answer
    x = 6,844.79

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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.