Home / 7,380.40-11,073.30-3,481.87

Finding the Fourth Proportional to 7,380.40, 11,073.30 and 3,481.87

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Solution

The fourth proportional to 7,380.40, 11,073.30 and 3,481.87 is: 5,224.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,380.40 : 11,073.30 = 3,481.87 : x
  2. Step 2: Convert to fraction form
    7,380.40/11,073.30 = 3,481.87/x
  3. Step 3: Cross multiply
    7,380.40x = 11,073.30 × 3,481.87
  4. Step 4: Simplify right side
    7,380.40x = 38,555,791.07
  5. Step 5: Solve for x
    x = 38,555,791.07/7,380.40
  6. Step 6: Final answer
    x = 5,224.08

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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.