Home / 2,381.43-3,286.05-1,333.23

Finding the Fourth Proportional to 2,381.43, 3,286.05 and 1,333.23

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Solution

The fourth proportional to 2,381.43, 3,286.05 and 1,333.23 is: 1,839.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,381.43 : 3,286.05 = 1,333.23 : x
  2. Step 2: Convert to fraction form
    2,381.43/3,286.05 = 1,333.23/x
  3. Step 3: Cross multiply
    2,381.43x = 3,286.05 × 1,333.23
  4. Step 4: Simplify right side
    2,381.43x = 4,381,060.44
  5. Step 5: Solve for x
    x = 4,381,060.44/2,381.43
  6. Step 6: Final answer
    x = 1,839.68

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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.