Home / 2,381.50-3,286.65-1,333.63

Finding the Fourth Proportional to 2,381.50, 3,286.65 and 1,333.63

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Solution

The fourth proportional to 2,381.50, 3,286.65 and 1,333.63 is: 1,840.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,381.50 : 3,286.65 = 1,333.63 : x
  2. Step 2: Convert to fraction form
    2,381.50/3,286.65 = 1,333.63/x
  3. Step 3: Cross multiply
    2,381.50x = 3,286.65 × 1,333.63
  4. Step 4: Simplify right side
    2,381.50x = 4,383,175.04
  5. Step 5: Solve for x
    x = 4,383,175.04/2,381.50
  6. Step 6: Final answer
    x = 1,840.51

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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.