Home / 3,480.89-5,221.33-1,015.96

Finding the Fourth Proportional to 3,480.89, 5,221.33 and 1,015.96

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Solution

The fourth proportional to 3,480.89, 5,221.33 and 1,015.96 is: 1,523.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,480.89 : 5,221.33 = 1,015.96 : x
  2. Step 2: Convert to fraction form
    3,480.89/5,221.33 = 1,015.96/x
  3. Step 3: Cross multiply
    3,480.89x = 5,221.33 × 1,015.96
  4. Step 4: Simplify right side
    3,480.89x = 5,304,646.83
  5. Step 5: Solve for x
    x = 5,304,646.83/3,480.89
  6. Step 6: Final answer
    x = 1,523.94

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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.