Home / 3,881.75-5,357.22-2,203.61

Finding the Fourth Proportional to 3,881.75, 5,357.22 and 2,203.61

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Solution

The fourth proportional to 3,881.75, 5,357.22 and 2,203.61 is: 3,041.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,881.75 : 5,357.22 = 2,203.61 : x
  2. Step 2: Convert to fraction form
    3,881.75/5,357.22 = 2,203.61/x
  3. Step 3: Cross multiply
    3,881.75x = 5,357.22 × 2,203.61
  4. Step 4: Simplify right side
    3,881.75x = 11,805,223.56
  5. Step 5: Solve for x
    x = 11,805,223.56/3,881.75
  6. Step 6: Final answer
    x = 3,041.21

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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.