Home / 3,391.34-4,679.82-1,974.78

Finding the Fourth Proportional to 3,391.34, 4,679.82 and 1,974.78

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Solution

The fourth proportional to 3,391.34, 4,679.82 and 1,974.78 is: 2,725.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,391.34 : 4,679.82 = 1,974.78 : x
  2. Step 2: Convert to fraction form
    3,391.34/4,679.82 = 1,974.78/x
  3. Step 3: Cross multiply
    3,391.34x = 4,679.82 × 1,974.78
  4. Step 4: Simplify right side
    3,391.34x = 9,241,614.94
  5. Step 5: Solve for x
    x = 9,241,614.94/3,391.34
  6. Step 6: Final answer
    x = 2,725.07

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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.