Home / 2,381.85-3,286.95-1,333.92

Finding the Fourth Proportional to 2,381.85, 3,286.95 and 1,333.92

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Solution

The fourth proportional to 2,381.85, 3,286.95 and 1,333.92 is: 1,840.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,381.85 : 3,286.95 = 1,333.92 : x
  2. Step 2: Convert to fraction form
    2,381.85/3,286.95 = 1,333.92/x
  3. Step 3: Cross multiply
    2,381.85x = 3,286.95 × 1,333.92
  4. Step 4: Simplify right side
    2,381.85x = 4,384,528.34
  5. Step 5: Solve for x
    x = 4,384,528.34/2,381.85
  6. Step 6: Final answer
    x = 1,840.81

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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.