Home / 2,381.33-3,286.34-1,333.40

Finding the Fourth Proportional to 2,381.33, 3,286.34 and 1,333.40

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Solution

The fourth proportional to 2,381.33, 3,286.34 and 1,333.40 is: 1,840.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,381.33 : 3,286.34 = 1,333.40 : x
  2. Step 2: Convert to fraction form
    2,381.33/3,286.34 = 1,333.40/x
  3. Step 3: Cross multiply
    2,381.33x = 3,286.34 × 1,333.40
  4. Step 4: Simplify right side
    2,381.33x = 4,381,982.66
  5. Step 5: Solve for x
    x = 4,381,982.66/2,381.33
  6. Step 6: Final answer
    x = 1,840.14

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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.