Home / 7,961.24-11,941.49-2,117.85

Finding the Fourth Proportional to 7,961.24, 11,941.49 and 2,117.85

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Solution

The fourth proportional to 7,961.24, 11,941.49 and 2,117.85 is: 3,176.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,961.24 : 11,941.49 = 2,117.85 : x
  2. Step 2: Convert to fraction form
    7,961.24/11,941.49 = 2,117.85/x
  3. Step 3: Cross multiply
    7,961.24x = 11,941.49 × 2,117.85
  4. Step 4: Simplify right side
    7,961.24x = 25,290,245.11
  5. Step 5: Solve for x
    x = 25,290,245.11/7,961.24
  6. Step 6: Final answer
    x = 3,176.67

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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.