Home / 3,964.44-5,470.77-2,171.88

Finding the Fourth Proportional to 3,964.44, 5,470.77 and 2,171.88

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Solution

The fourth proportional to 3,964.44, 5,470.77 and 2,171.88 is: 2,997.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,964.44 : 5,470.77 = 2,171.88 : x
  2. Step 2: Convert to fraction form
    3,964.44/5,470.77 = 2,171.88/x
  3. Step 3: Cross multiply
    3,964.44x = 5,470.77 × 2,171.88
  4. Step 4: Simplify right side
    3,964.44x = 11,881,855.95
  5. Step 5: Solve for x
    x = 11,881,855.95/3,964.44
  6. Step 6: Final answer
    x = 2,997.11

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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.