Home / 7,474.01-11,212.76-2,279.88

Finding the Fourth Proportional to 7,474.01, 11,212.76 and 2,279.88

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Solution

The fourth proportional to 7,474.01, 11,212.76 and 2,279.88 is: 3,420.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,474.01 : 11,212.76 = 2,279.88 : x
  2. Step 2: Convert to fraction form
    7,474.01/11,212.76 = 2,279.88/x
  3. Step 3: Cross multiply
    7,474.01x = 11,212.76 × 2,279.88
  4. Step 4: Simplify right side
    7,474.01x = 25,563,752.97
  5. Step 5: Solve for x
    x = 25,563,752.97/7,474.01
  6. Step 6: Final answer
    x = 3,420.36

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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.