Home / 1,781.61-2,672.45-844.33

Finding the Fourth Proportional to 1,781.61, 2,672.45 and 844.33

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Solution

The fourth proportional to 1,781.61, 2,672.45 and 844.33 is: 1,266.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,781.61 : 2,672.45 = 844.33 : x
  2. Step 2: Convert to fraction form
    1,781.61/2,672.45 = 844.33/x
  3. Step 3: Cross multiply
    1,781.61x = 2,672.45 × 844.33
  4. Step 4: Simplify right side
    1,781.61x = 2,256,432.87
  5. Step 5: Solve for x
    x = 2,256,432.87/1,781.61
  6. Step 6: Final answer
    x = 1,266.52

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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.