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Finding the Fourth Proportional to 6,297.12, 8,691.84 and 4,207.32

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Solution

The fourth proportional to 6,297.12, 8,691.84 and 4,207.32 is: 5,807.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,297.12 : 8,691.84 = 4,207.32 : x
  2. Step 2: Convert to fraction form
    6,297.12/8,691.84 = 4,207.32/x
  3. Step 3: Cross multiply
    6,297.12x = 8,691.84 × 4,207.32
  4. Step 4: Simplify right side
    6,297.12x = 36,569,352.27
  5. Step 5: Solve for x
    x = 36,569,352.27/6,297.12
  6. Step 6: Final answer
    x = 5,807.31

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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.