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Finding the Fourth Proportional to 5,388.22, 8,079.11 and 2,097.46

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Solution

The fourth proportional to 5,388.22, 8,079.11 and 2,097.46 is: 3,144.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,388.22 : 8,079.11 = 2,097.46 : x
  2. Step 2: Convert to fraction form
    5,388.22/8,079.11 = 2,097.46/x
  3. Step 3: Cross multiply
    5,388.22x = 8,079.11 × 2,097.46
  4. Step 4: Simplify right side
    5,388.22x = 16,945,617.54
  5. Step 5: Solve for x
    x = 16,945,617.54/5,388.22
  6. Step 6: Final answer
    x = 3,144.94

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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.