Home / 3,991,803.64-5,508,691.05-2,156,261.83

Finding the Fourth Proportional to 3,991,803.64, 5,508,691.05 and 2,156,261.83

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Solution

The fourth proportional to 3,991,803.64, 5,508,691.05 and 2,156,261.83 is: 2,975,642.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,991,803.64 : 5,508,691.05 = 2,156,261.83 : x
  2. Step 2: Convert to fraction form
    3,991,803.64/5,508,691.05 = 2,156,261.83/x
  3. Step 3: Cross multiply
    3,991,803.64x = 5,508,691.05 × 2,156,261.83
  4. Step 4: Simplify right side
    3,991,803.64x = 11,878,180,244,377.62
  5. Step 5: Solve for x
    x = 11,878,180,244,377.62/3,991,803.64
  6. Step 6: Final answer
    x = 2,975,642.42

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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.