Home / 7,126.89-10,691.34-2,198.04

Finding the Fourth Proportional to 7,126.89, 10,691.34 and 2,198.04

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Solution

The fourth proportional to 7,126.89, 10,691.34 and 2,198.04 is: 3,297.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,126.89 : 10,691.34 = 2,198.04 : x
  2. Step 2: Convert to fraction form
    7,126.89/10,691.34 = 2,198.04/x
  3. Step 3: Cross multiply
    7,126.89x = 10,691.34 × 2,198.04
  4. Step 4: Simplify right side
    7,126.89x = 23,499,957.00
  5. Step 5: Solve for x
    x = 23,499,957.00/7,126.89
  6. Step 6: Final answer
    x = 3,297.37

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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.