Home / 2,279,481.78-3,129,212.42-1,956,631.38

Finding the Fourth Proportional to 2,279,481.78, 3,129,212.42 and 1,956,631.38

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Solution

The fourth proportional to 2,279,481.78, 3,129,212.42 and 1,956,631.38 is: 2,686,011.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,279,481.78 : 3,129,212.42 = 1,956,631.38 : x
  2. Step 2: Convert to fraction form
    2,279,481.78/3,129,212.42 = 1,956,631.38/x
  3. Step 3: Cross multiply
    2,279,481.78x = 3,129,212.42 × 1,956,631.38
  4. Step 4: Simplify right side
    2,279,481.78x = 6,122,715,205,874.58
  5. Step 5: Solve for x
    x = 6,122,715,205,874.58/2,279,481.78
  6. Step 6: Final answer
    x = 2,686,011.91

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Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.