Home / 5,400.72-8,102.97-2,481.21

Finding the Fourth Proportional to 5,400.72, 8,102.97 and 2,481.21

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Solution

The fourth proportional to 5,400.72, 8,102.97 and 2,481.21 is: 3,722.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,400.72 : 8,102.97 = 2,481.21 : x
  2. Step 2: Convert to fraction form
    5,400.72/8,102.97 = 2,481.21/x
  3. Step 3: Cross multiply
    5,400.72x = 8,102.97 × 2,481.21
  4. Step 4: Simplify right side
    5,400.72x = 20,105,170.19
  5. Step 5: Solve for x
    x = 20,105,170.19/5,400.72
  6. Step 6: Final answer
    x = 3,722.68

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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.