Home / 2,381.23-3,286.12-1,333.29

Finding the Fourth Proportional to 2,381.23, 3,286.12 and 1,333.29

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Solution

The fourth proportional to 2,381.23, 3,286.12 and 1,333.29 is: 1,839.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,381.23 : 3,286.12 = 1,333.29 : x
  2. Step 2: Convert to fraction form
    2,381.23/3,286.12 = 1,333.29/x
  3. Step 3: Cross multiply
    2,381.23x = 3,286.12 × 1,333.29
  4. Step 4: Simplify right side
    2,381.23x = 4,381,350.93
  5. Step 5: Solve for x
    x = 4,381,350.93/2,381.23
  6. Step 6: Final answer
    x = 1,839.96

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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.