Home / 3,884.97-5,361.23-2,116.57

Finding the Fourth Proportional to 3,884.97, 5,361.23 and 2,116.57

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Solution

The fourth proportional to 3,884.97, 5,361.23 and 2,116.57 is: 2,920.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,884.97 : 5,361.23 = 2,116.57 : x
  2. Step 2: Convert to fraction form
    3,884.97/5,361.23 = 2,116.57/x
  3. Step 3: Cross multiply
    3,884.97x = 5,361.23 × 2,116.57
  4. Step 4: Simplify right side
    3,884.97x = 11,347,410.47
  5. Step 5: Solve for x
    x = 11,347,410.47/3,884.97
  6. Step 6: Final answer
    x = 2,920.85

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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.