Home / 6,922.31-10,387.79-2,761.70

Finding the Fourth Proportional to 6,922.31, 10,387.79 and 2,761.70

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Solution

The fourth proportional to 6,922.31, 10,387.79 and 2,761.70 is: 4,144.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,922.31 : 10,387.79 = 2,761.70 : x
  2. Step 2: Convert to fraction form
    6,922.31/10,387.79 = 2,761.70/x
  3. Step 3: Cross multiply
    6,922.31x = 10,387.79 × 2,761.70
  4. Step 4: Simplify right side
    6,922.31x = 28,687,919.79
  5. Step 5: Solve for x
    x = 28,687,919.79/6,922.31
  6. Step 6: Final answer
    x = 4,144.27

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.