Home / 3,971,869.52-5,481,016.20-2,161,040.72

Finding the Fourth Proportional to 3,971,869.52, 5,481,016.20 and 2,161,040.72

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Solution

The fourth proportional to 3,971,869.52, 5,481,016.20 and 2,161,040.72 is: 2,982,147.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,971,869.52 : 5,481,016.20 = 2,161,040.72 : x
  2. Step 2: Convert to fraction form
    3,971,869.52/5,481,016.20 = 2,161,040.72/x
  3. Step 3: Cross multiply
    3,971,869.52x = 5,481,016.20 × 2,161,040.72
  4. Step 4: Simplify right side
    3,971,869.52x = 11,844,699,195,179.67
  5. Step 5: Solve for x
    x = 11,844,699,195,179.67/3,971,869.52
  6. Step 6: Final answer
    x = 2,982,147.11

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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.