Home / 2,381.30-3,286.14-1,333.38

Finding the Fourth Proportional to 2,381.30, 3,286.14 and 1,333.38

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Solution

The fourth proportional to 2,381.30, 3,286.14 and 1,333.38 is: 1,840.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,381.30 : 3,286.14 = 1,333.38 : x
  2. Step 2: Convert to fraction form
    2,381.30/3,286.14 = 1,333.38/x
  3. Step 3: Cross multiply
    2,381.30x = 3,286.14 × 1,333.38
  4. Step 4: Simplify right side
    2,381.30x = 4,381,673.35
  5. Step 5: Solve for x
    x = 4,381,673.35/2,381.30
  6. Step 6: Final answer
    x = 1,840.03

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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.