Home / 3,381.38-5,072.06-1,189.86

Finding the Fourth Proportional to 3,381.38, 5,072.06 and 1,189.86

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Solution

The fourth proportional to 3,381.38, 5,072.06 and 1,189.86 is: 1,784.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,381.38 : 5,072.06 = 1,189.86 : x
  2. Step 2: Convert to fraction form
    3,381.38/5,072.06 = 1,189.86/x
  3. Step 3: Cross multiply
    3,381.38x = 5,072.06 × 1,189.86
  4. Step 4: Simplify right side
    3,381.38x = 6,035,041.31
  5. Step 5: Solve for x
    x = 6,035,041.31/3,381.38
  6. Step 6: Final answer
    x = 1,784.79

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.