Home / 1,939.76-2,677.92-1,463.88

Finding the Fourth Proportional to 1,939.76, 2,677.92 and 1,463.88

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Solution

The fourth proportional to 1,939.76, 2,677.92 and 1,463.88 is: 2,020.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,939.76 : 2,677.92 = 1,463.88 : x
  2. Step 2: Convert to fraction form
    1,939.76/2,677.92 = 1,463.88/x
  3. Step 3: Cross multiply
    1,939.76x = 2,677.92 × 1,463.88
  4. Step 4: Simplify right side
    1,939.76x = 3,920,146.21
  5. Step 5: Solve for x
    x = 3,920,146.21/1,939.76
  6. Step 6: Final answer
    x = 2,020.95

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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.