Home / 7,711.85-11,559.49-3,331.37

Finding the Fourth Proportional to 7,711.85, 11,559.49 and 3,331.37

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Solution

The fourth proportional to 7,711.85, 11,559.49 and 3,331.37 is: 4,993.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,711.85 : 11,559.49 = 3,331.37 : x
  2. Step 2: Convert to fraction form
    7,711.85/11,559.49 = 3,331.37/x
  3. Step 3: Cross multiply
    7,711.85x = 11,559.49 × 3,331.37
  4. Step 4: Simplify right side
    7,711.85x = 38,508,938.20
  5. Step 5: Solve for x
    x = 38,508,938.20/7,711.85
  6. Step 6: Final answer
    x = 4,993.48

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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.