Home / 3,881.22-5,356.43-2,202.69

Finding the Fourth Proportional to 3,881.22, 5,356.43 and 2,202.69

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Solution

The fourth proportional to 3,881.22, 5,356.43 and 2,202.69 is: 3,039.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,881.22 : 5,356.43 = 2,202.69 : x
  2. Step 2: Convert to fraction form
    3,881.22/5,356.43 = 2,202.69/x
  3. Step 3: Cross multiply
    3,881.22x = 5,356.43 × 2,202.69
  4. Step 4: Simplify right side
    3,881.22x = 11,798,554.80
  5. Step 5: Solve for x
    x = 11,798,554.80/3,881.22
  6. Step 6: Final answer
    x = 3,039.91

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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.