Home / 2,381.86-3,286.47-1,333.90

Finding the Fourth Proportional to 2,381.86, 3,286.47 and 1,333.90

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Solution

The fourth proportional to 2,381.86, 3,286.47 and 1,333.90 is: 1,840.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,381.86 : 3,286.47 = 1,333.90 : x
  2. Step 2: Convert to fraction form
    2,381.86/3,286.47 = 1,333.90/x
  3. Step 3: Cross multiply
    2,381.86x = 3,286.47 × 1,333.90
  4. Step 4: Simplify right side
    2,381.86x = 4,383,822.33
  5. Step 5: Solve for x
    x = 4,383,822.33/2,381.86
  6. Step 6: Final answer
    x = 1,840.50

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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.