Home / 7,942.28-11,914.68-2,748.56

Finding the Fourth Proportional to 7,942.28, 11,914.68 and 2,748.56

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Solution

The fourth proportional to 7,942.28, 11,914.68 and 2,748.56 is: 4,123.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,942.28 : 11,914.68 = 2,748.56 : x
  2. Step 2: Convert to fraction form
    7,942.28/11,914.68 = 2,748.56/x
  3. Step 3: Cross multiply
    7,942.28x = 11,914.68 × 2,748.56
  4. Step 4: Simplify right side
    7,942.28x = 32,748,212.86
  5. Step 5: Solve for x
    x = 32,748,212.86/7,942.28
  6. Step 6: Final answer
    x = 4,123.28

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1.5x scale

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.