Home / 3,991.10-5,507.62-2,222.66

Finding the Fourth Proportional to 3,991.10, 5,507.62 and 2,222.66

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Solution

The fourth proportional to 3,991.10, 5,507.62 and 2,222.66 is: 3,067.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,991.10 : 5,507.62 = 2,222.66 : x
  2. Step 2: Convert to fraction form
    3,991.10/5,507.62 = 2,222.66/x
  3. Step 3: Cross multiply
    3,991.10x = 5,507.62 × 2,222.66
  4. Step 4: Simplify right side
    3,991.10x = 12,241,566.67
  5. Step 5: Solve for x
    x = 12,241,566.67/3,991.10
  6. Step 6: Final answer
    x = 3,067.22

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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.