Home / 2,932.40-4,377.70-2,491.76

Finding the Fourth Proportional to 2,932.40, 4,377.70 and 2,491.76

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Solution

The fourth proportional to 2,932.40, 4,377.70 and 2,491.76 is: 3,719.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,932.40 : 4,377.70 = 2,491.76 : x
  2. Step 2: Convert to fraction form
    2,932.40/4,377.70 = 2,491.76/x
  3. Step 3: Cross multiply
    2,932.40x = 4,377.70 × 2,491.76
  4. Step 4: Simplify right side
    2,932.40x = 10,908,177.75
  5. Step 5: Solve for x
    x = 10,908,177.75/2,932.40
  6. Step 6: Final answer
    x = 3,719.88

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.