Home / 3,881.94-5,356.86-2,202.90

Finding the Fourth Proportional to 3,881.94, 5,356.86 and 2,202.90

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Solution

The fourth proportional to 3,881.94, 5,356.86 and 2,202.90 is: 3,039.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,881.94 : 5,356.86 = 2,202.90 : x
  2. Step 2: Convert to fraction form
    3,881.94/5,356.86 = 2,202.90/x
  3. Step 3: Cross multiply
    3,881.94x = 5,356.86 × 2,202.90
  4. Step 4: Simplify right side
    3,881.94x = 11,800,626.89
  5. Step 5: Solve for x
    x = 11,800,626.89/3,881.94
  6. Step 6: Final answer
    x = 3,039.88

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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.