Home / 5,481.20-7,564.05-2,997.20

Finding the Fourth Proportional to 5,481.20, 7,564.05 and 2,997.20

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Solution

The fourth proportional to 5,481.20, 7,564.05 and 2,997.20 is: 4,136.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,481.20 : 7,564.05 = 2,997.20 : x
  2. Step 2: Convert to fraction form
    5,481.20/7,564.05 = 2,997.20/x
  3. Step 3: Cross multiply
    5,481.20x = 7,564.05 × 2,997.20
  4. Step 4: Simplify right side
    5,481.20x = 22,670,932.84
  5. Step 5: Solve for x
    x = 22,670,932.84/5,481.20
  6. Step 6: Final answer
    x = 4,136.13

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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.