Home / 3,412.56-5,121.19-1,191.41

Finding the Fourth Proportional to 3,412.56, 5,121.19 and 1,191.41

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Solution

The fourth proportional to 3,412.56, 5,121.19 and 1,191.41 is: 1,787.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,412.56 : 5,121.19 = 1,191.41 : x
  2. Step 2: Convert to fraction form
    3,412.56/5,121.19 = 1,191.41/x
  3. Step 3: Cross multiply
    3,412.56x = 5,121.19 × 1,191.41
  4. Step 4: Simplify right side
    3,412.56x = 6,101,436.98
  5. Step 5: Solve for x
    x = 6,101,436.98/3,412.56
  6. Step 6: Final answer
    x = 1,787.94

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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.