Home / 7,942.96-11,914.32-2,748.88

Finding the Fourth Proportional to 7,942.96, 11,914.32 and 2,748.88

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Solution

The fourth proportional to 7,942.96, 11,914.32 and 2,748.88 is: 4,123.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,942.96 : 11,914.32 = 2,748.88 : x
  2. Step 2: Convert to fraction form
    7,942.96/11,914.32 = 2,748.88/x
  3. Step 3: Cross multiply
    7,942.96x = 11,914.32 × 2,748.88
  4. Step 4: Simplify right side
    7,942.96x = 32,751,035.96
  5. Step 5: Solve for x
    x = 32,751,035.96/7,942.96
  6. Step 6: Final answer
    x = 4,123.28

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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.