Home / 3,981,379.62-5,494,237.92-2,215,211.72

Finding the Fourth Proportional to 3,981,379.62, 5,494,237.92 and 2,215,211.72

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Solution

The fourth proportional to 3,981,379.62, 5,494,237.92 and 2,215,211.72 is: 3,056,955.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,981,379.62 : 5,494,237.92 = 2,215,211.72 : x
  2. Step 2: Convert to fraction form
    3,981,379.62/5,494,237.92 = 2,215,211.72/x
  3. Step 3: Cross multiply
    3,981,379.62x = 5,494,237.92 × 2,215,211.72
  4. Step 4: Simplify right side
    3,981,379.62x = 12,170,900,232,852.42
  5. Step 5: Solve for x
    x = 12,170,900,232,852.42/3,981,379.62
  6. Step 6: Final answer
    x = 3,056,955.48

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.