Home / 7,928.82-11,889.18-2,662.02

Finding the Fourth Proportional to 7,928.82, 11,889.18 and 2,662.02

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Solution

The fourth proportional to 7,928.82, 11,889.18 and 2,662.02 is: 3,991.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,928.82 : 11,889.18 = 2,662.02 : x
  2. Step 2: Convert to fraction form
    7,928.82/11,889.18 = 2,662.02/x
  3. Step 3: Cross multiply
    7,928.82x = 11,889.18 × 2,662.02
  4. Step 4: Simplify right side
    7,928.82x = 31,649,234.94
  5. Step 5: Solve for x
    x = 31,649,234.94/7,928.82
  6. Step 6: Final answer
    x = 3,991.67

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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.