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Finding the Fourth Proportional to 6,939.01, 10,410.05 and 3,239.22

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Solution

The fourth proportional to 6,939.01, 10,410.05 and 3,239.22 is: 4,859.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,939.01 : 10,410.05 = 3,239.22 : x
  2. Step 2: Convert to fraction form
    6,939.01/10,410.05 = 3,239.22/x
  3. Step 3: Cross multiply
    6,939.01x = 10,410.05 × 3,239.22
  4. Step 4: Simplify right side
    6,939.01x = 33,720,442.16
  5. Step 5: Solve for x
    x = 33,720,442.16/6,939.01
  6. Step 6: Final answer
    x = 4,859.55

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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.