Home / 1,781.73-2,459.97-1,119.60

Finding the Fourth Proportional to 1,781.73, 2,459.97 and 1,119.60

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Solution

The fourth proportional to 1,781.73, 2,459.97 and 1,119.60 is: 1,545.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,781.73 : 2,459.97 = 1,119.60 : x
  2. Step 2: Convert to fraction form
    1,781.73/2,459.97 = 1,119.60/x
  3. Step 3: Cross multiply
    1,781.73x = 2,459.97 × 1,119.60
  4. Step 4: Simplify right side
    1,781.73x = 2,754,182.41
  5. Step 5: Solve for x
    x = 2,754,182.41/1,781.73
  6. Step 6: Final answer
    x = 1,545.79

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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.