Home / 6,122.49-9,186.45-3,489.90

Finding the Fourth Proportional to 6,122.49, 9,186.45 and 3,489.90

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Solution

The fourth proportional to 6,122.49, 9,186.45 and 3,489.90 is: 5,236.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,122.49 : 9,186.45 = 3,489.90 : x
  2. Step 2: Convert to fraction form
    6,122.49/9,186.45 = 3,489.90/x
  3. Step 3: Cross multiply
    6,122.49x = 9,186.45 × 3,489.90
  4. Step 4: Simplify right side
    6,122.49x = 32,059,791.86
  5. Step 5: Solve for x
    x = 32,059,791.86/6,122.49
  6. Step 6: Final answer
    x = 5,236.40

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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.