Home / 3,971,821.52-5,480,949.96-2,160,992.72

Finding the Fourth Proportional to 3,971,821.52, 5,480,949.96 and 2,160,992.72

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Solution

The fourth proportional to 3,971,821.52, 5,480,949.96 and 2,160,992.72 is: 2,982,080.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,971,821.52 : 5,480,949.96 = 2,160,992.72 : x
  2. Step 2: Convert to fraction form
    3,971,821.52/5,480,949.96 = 2,160,992.72/x
  3. Step 3: Cross multiply
    3,971,821.52x = 5,480,949.96 × 2,160,992.72
  4. Step 4: Simplify right side
    3,971,821.52x = 11,844,292,962,244.29
  5. Step 5: Solve for x
    x = 11,844,292,962,244.29/3,971,821.52
  6. Step 6: Final answer
    x = 2,982,080.87

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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.