Home / 2,291.28-3,159.89-1,937.95

Finding the Fourth Proportional to 2,291.28, 3,159.89 and 1,937.95

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Solution

The fourth proportional to 2,291.28, 3,159.89 and 1,937.95 is: 2,672.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,291.28 : 3,159.89 = 1,937.95 : x
  2. Step 2: Convert to fraction form
    2,291.28/3,159.89 = 1,937.95/x
  3. Step 3: Cross multiply
    2,291.28x = 3,159.89 × 1,937.95
  4. Step 4: Simplify right side
    2,291.28x = 6,123,708.83
  5. Step 5: Solve for x
    x = 6,123,708.83/2,291.28
  6. Step 6: Final answer
    x = 2,672.61

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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.