Home / 3,884.85-5,361.03-2,116.53

Finding the Fourth Proportional to 3,884.85, 5,361.03 and 2,116.53

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Solution

The fourth proportional to 3,884.85, 5,361.03 and 2,116.53 is: 2,920.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,884.85 : 5,361.03 = 2,116.53 : x
  2. Step 2: Convert to fraction form
    3,884.85/5,361.03 = 2,116.53/x
  3. Step 3: Cross multiply
    3,884.85x = 5,361.03 × 2,116.53
  4. Step 4: Simplify right side
    3,884.85x = 11,346,780.83
  5. Step 5: Solve for x
    x = 11,346,780.83/3,884.85
  6. Step 6: Final answer
    x = 2,920.78

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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.