Home / 3,881.33-5,356.35-2,202.80

Finding the Fourth Proportional to 3,881.33, 5,356.35 and 2,202.80

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Solution

The fourth proportional to 3,881.33, 5,356.35 and 2,202.80 is: 3,039.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,881.33 : 5,356.35 = 2,202.80 : x
  2. Step 2: Convert to fraction form
    3,881.33/5,356.35 = 2,202.80/x
  3. Step 3: Cross multiply
    3,881.33x = 5,356.35 × 2,202.80
  4. Step 4: Simplify right side
    3,881.33x = 11,798,967.78
  5. Step 5: Solve for x
    x = 11,798,967.78/3,881.33
  6. Step 6: Final answer
    x = 3,039.93

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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.