Home / 7,843.12-11,764.96-2,649.04

Finding the Fourth Proportional to 7,843.12, 11,764.96 and 2,649.04

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Solution

The fourth proportional to 7,843.12, 11,764.96 and 2,649.04 is: 3,973.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,843.12 : 11,764.96 = 2,649.04 : x
  2. Step 2: Convert to fraction form
    7,843.12/11,764.96 = 2,649.04/x
  3. Step 3: Cross multiply
    7,843.12x = 11,764.96 × 2,649.04
  4. Step 4: Simplify right side
    7,843.12x = 31,165,849.64
  5. Step 5: Solve for x
    x = 31,165,849.64/7,843.12
  6. Step 6: Final answer
    x = 3,973.65

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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.