Home / 7,581.49-11,372.28-3,198.37

Finding the Fourth Proportional to 7,581.49, 11,372.28 and 3,198.37

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Solution

The fourth proportional to 7,581.49, 11,372.28 and 3,198.37 is: 4,797.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,581.49 : 11,372.28 = 3,198.37 : x
  2. Step 2: Convert to fraction form
    7,581.49/11,372.28 = 3,198.37/x
  3. Step 3: Cross multiply
    7,581.49x = 11,372.28 × 3,198.37
  4. Step 4: Simplify right side
    7,581.49x = 36,372,759.18
  5. Step 5: Solve for x
    x = 36,372,759.18/7,581.49
  6. Step 6: Final answer
    x = 4,797.57

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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.