Home / 6,687.24-9,218.78-4,691.61

Finding the Fourth Proportional to 6,687.24, 9,218.78 and 4,691.61

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Solution

The fourth proportional to 6,687.24, 9,218.78 and 4,691.61 is: 6,467.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,687.24 : 9,218.78 = 4,691.61 : x
  2. Step 2: Convert to fraction form
    6,687.24/9,218.78 = 4,691.61/x
  3. Step 3: Cross multiply
    6,687.24x = 9,218.78 × 4,691.61
  4. Step 4: Simplify right side
    6,687.24x = 43,250,896.98
  5. Step 5: Solve for x
    x = 43,250,896.98/6,687.24
  6. Step 6: Final answer
    x = 6,467.68

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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.