Home / 1,201.60-1,660.44-1,083.52

Finding the Fourth Proportional to 1,201.60, 1,660.44 and 1,083.52

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Solution

The fourth proportional to 1,201.60, 1,660.44 and 1,083.52 is: 1,497.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,201.60 : 1,660.44 = 1,083.52 : x
  2. Step 2: Convert to fraction form
    1,201.60/1,660.44 = 1,083.52/x
  3. Step 3: Cross multiply
    1,201.60x = 1,660.44 × 1,083.52
  4. Step 4: Simplify right side
    1,201.60x = 1,799,119.95
  5. Step 5: Solve for x
    x = 1,799,119.95/1,201.60
  6. Step 6: Final answer
    x = 1,497.27

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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.