Home / 1,781.94-2,672.30-844.78

Finding the Fourth Proportional to 1,781.94, 2,672.30 and 844.78

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Solution

The fourth proportional to 1,781.94, 2,672.30 and 844.78 is: 1,266.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,781.94 : 2,672.30 = 844.78 : x
  2. Step 2: Convert to fraction form
    1,781.94/2,672.30 = 844.78/x
  3. Step 3: Cross multiply
    1,781.94x = 2,672.30 × 844.78
  4. Step 4: Simplify right side
    1,781.94x = 2,257,505.59
  5. Step 5: Solve for x
    x = 2,257,505.59/1,781.94
  6. Step 6: Final answer
    x = 1,266.88

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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.