Home / 3,481.74-5,221.58-1,015.90

Finding the Fourth Proportional to 3,481.74, 5,221.58 and 1,015.90

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Solution

The fourth proportional to 3,481.74, 5,221.58 and 1,015.90 is: 1,523.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,481.74 : 5,221.58 = 1,015.90 : x
  2. Step 2: Convert to fraction form
    3,481.74/5,221.58 = 1,015.90/x
  3. Step 3: Cross multiply
    3,481.74x = 5,221.58 × 1,015.90
  4. Step 4: Simplify right side
    3,481.74x = 5,304,600.58
  5. Step 5: Solve for x
    x = 5,304,600.58/3,481.74
  6. Step 6: Final answer
    x = 1,523.55

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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.