Home / 3,884.89-5,361.16-2,116.51

Finding the Fourth Proportional to 3,884.89, 5,361.16 and 2,116.51

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Solution

The fourth proportional to 3,884.89, 5,361.16 and 2,116.51 is: 2,920.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,884.89 : 5,361.16 = 2,116.51 : x
  2. Step 2: Convert to fraction form
    3,884.89/5,361.16 = 2,116.51/x
  3. Step 3: Cross multiply
    3,884.89x = 5,361.16 × 2,116.51
  4. Step 4: Simplify right side
    3,884.89x = 11,346,948.75
  5. Step 5: Solve for x
    x = 11,346,948.75/3,884.89
  6. Step 6: Final answer
    x = 2,920.79

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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.