Home / 3,723.34-5,137.83-2,231.22

Finding the Fourth Proportional to 3,723.34, 5,137.83 and 2,231.22

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Solution

The fourth proportional to 3,723.34, 5,137.83 and 2,231.22 is: 3,078.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,723.34 : 5,137.83 = 2,231.22 : x
  2. Step 2: Convert to fraction form
    3,723.34/5,137.83 = 2,231.22/x
  3. Step 3: Cross multiply
    3,723.34x = 5,137.83 × 2,231.22
  4. Step 4: Simplify right side
    3,723.34x = 11,463,617.90
  5. Step 5: Solve for x
    x = 11,463,617.90/3,723.34
  6. Step 6: Final answer
    x = 3,078.85

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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.