Home / 3,721.97-5,585.18-1,381.58

Finding the Fourth Proportional to 3,721.97, 5,585.18 and 1,381.58

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Solution

The fourth proportional to 3,721.97, 5,585.18 and 1,381.58 is: 2,073.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,721.97 : 5,585.18 = 1,381.58 : x
  2. Step 2: Convert to fraction form
    3,721.97/5,585.18 = 1,381.58/x
  3. Step 3: Cross multiply
    3,721.97x = 5,585.18 × 1,381.58
  4. Step 4: Simplify right side
    3,721.97x = 7,716,338.15
  5. Step 5: Solve for x
    x = 7,716,338.15/3,721.97
  6. Step 6: Final answer
    x = 2,073.19

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.