Home / 7,982.98-11,976.02-2,717.78

Finding the Fourth Proportional to 7,982.98, 11,976.02 and 2,717.78

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Solution

The fourth proportional to 7,982.98, 11,976.02 and 2,717.78 is: 4,077.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,982.98 : 11,976.02 = 2,717.78 : x
  2. Step 2: Convert to fraction form
    7,982.98/11,976.02 = 2,717.78/x
  3. Step 3: Cross multiply
    7,982.98x = 11,976.02 × 2,717.78
  4. Step 4: Simplify right side
    7,982.98x = 32,548,187.64
  5. Step 5: Solve for x
    x = 32,548,187.64/7,982.98
  6. Step 6: Final answer
    x = 4,077.20

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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.