Home / 7,387.12-11,077.43-2,766.88

Finding the Fourth Proportional to 7,387.12, 11,077.43 and 2,766.88

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Solution

The fourth proportional to 7,387.12, 11,077.43 and 2,766.88 is: 4,149.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,387.12 : 11,077.43 = 2,766.88 : x
  2. Step 2: Convert to fraction form
    7,387.12/11,077.43 = 2,766.88/x
  3. Step 3: Cross multiply
    7,387.12x = 11,077.43 × 2,766.88
  4. Step 4: Simplify right side
    7,387.12x = 30,649,864.13
  5. Step 5: Solve for x
    x = 30,649,864.13/7,387.12
  6. Step 6: Final answer
    x = 4,149.10

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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.