Home / 3,991.05-5,507.63-2,222.73

Finding the Fourth Proportional to 3,991.05, 5,507.63 and 2,222.73

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Solution

The fourth proportional to 3,991.05, 5,507.63 and 2,222.73 is: 3,067.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,991.05 : 5,507.63 = 2,222.73 : x
  2. Step 2: Convert to fraction form
    3,991.05/5,507.63 = 2,222.73/x
  3. Step 3: Cross multiply
    3,991.05x = 5,507.63 × 2,222.73
  4. Step 4: Simplify right side
    3,991.05x = 12,241,963.32
  5. Step 5: Solve for x
    x = 12,241,963.32/3,991.05
  6. Step 6: Final answer
    x = 3,067.35

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1.5x scale

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.