Home / 1,781.73-2,458.62-1,073.79

Finding the Fourth Proportional to 1,781.73, 2,458.62 and 1,073.79

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Solution

The fourth proportional to 1,781.73, 2,458.62 and 1,073.79 is: 1,481.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,781.73 : 2,458.62 = 1,073.79 : x
  2. Step 2: Convert to fraction form
    1,781.73/2,458.62 = 1,073.79/x
  3. Step 3: Cross multiply
    1,781.73x = 2,458.62 × 1,073.79
  4. Step 4: Simplify right side
    1,781.73x = 2,640,041.57
  5. Step 5: Solve for x
    x = 2,640,041.57/1,781.73
  6. Step 6: Final answer
    x = 1,481.73

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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.