Home / 3,139.29-4,708.98-2,162.43

Finding the Fourth Proportional to 3,139.29, 4,708.98 and 2,162.43

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Solution

The fourth proportional to 3,139.29, 4,708.98 and 2,162.43 is: 3,243.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,139.29 : 4,708.98 = 2,162.43 : x
  2. Step 2: Convert to fraction form
    3,139.29/4,708.98 = 2,162.43/x
  3. Step 3: Cross multiply
    3,139.29x = 4,708.98 × 2,162.43
  4. Step 4: Simplify right side
    3,139.29x = 10,182,839.62
  5. Step 5: Solve for x
    x = 10,182,839.62/3,139.29
  6. Step 6: Final answer
    x = 3,243.68

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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.