Home / 3,991.26-5,507.93-2,222.86

Finding the Fourth Proportional to 3,991.26, 5,507.93 and 2,222.86

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Solution

The fourth proportional to 3,991.26, 5,507.93 and 2,222.86 is: 3,067.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,991.26 : 5,507.93 = 2,222.86 : x
  2. Step 2: Convert to fraction form
    3,991.26/5,507.93 = 2,222.86/x
  3. Step 3: Cross multiply
    3,991.26x = 5,507.93 × 2,222.86
  4. Step 4: Simplify right side
    3,991.26x = 12,243,359.39
  5. Step 5: Solve for x
    x = 12,243,359.39/3,991.26
  6. Step 6: Final answer
    x = 3,067.54

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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.