Home / 3,847,078.98-5,309,125.29-2,128,169.88

Finding the Fourth Proportional to 3,847,078.98, 5,309,125.29 and 2,128,169.88

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Solution

The fourth proportional to 3,847,078.98, 5,309,125.29 and 2,128,169.88 is: 2,936,960.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,847,078.98 : 5,309,125.29 = 2,128,169.88 : x
  2. Step 2: Convert to fraction form
    3,847,078.98/5,309,125.29 = 2,128,169.88/x
  3. Step 3: Cross multiply
    3,847,078.98x = 5,309,125.29 × 2,128,169.88
  4. Step 4: Simplify right side
    3,847,078.98x = 11,298,720,531,324.27
  5. Step 5: Solve for x
    x = 11,298,720,531,324.27/3,847,078.98
  6. Step 6: Final answer
    x = 2,936,960.90

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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.