Home / 4,781.31-7,169.50-2,146.56

Finding the Fourth Proportional to 4,781.31, 7,169.50 and 2,146.56

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Solution

The fourth proportional to 4,781.31, 7,169.50 and 2,146.56 is: 3,218.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,781.31 : 7,169.50 = 2,146.56 : x
  2. Step 2: Convert to fraction form
    4,781.31/7,169.50 = 2,146.56/x
  3. Step 3: Cross multiply
    4,781.31x = 7,169.50 × 2,146.56
  4. Step 4: Simplify right side
    4,781.31x = 15,389,761.92
  5. Step 5: Solve for x
    x = 15,389,761.92/4,781.31
  6. Step 6: Final answer
    x = 3,218.73

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1.5x scale

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.