Home / 7,738.91-11,608.34-2,808.53

Finding the Fourth Proportional to 7,738.91, 11,608.34 and 2,808.53

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Solution

The fourth proportional to 7,738.91, 11,608.34 and 2,808.53 is: 4,212.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,738.91 : 11,608.34 = 2,808.53 : x
  2. Step 2: Convert to fraction form
    7,738.91/11,608.34 = 2,808.53/x
  3. Step 3: Cross multiply
    7,738.91x = 11,608.34 × 2,808.53
  4. Step 4: Simplify right side
    7,738.91x = 32,602,299.06
  5. Step 5: Solve for x
    x = 32,602,299.06/7,738.91
  6. Step 6: Final answer
    x = 4,212.78

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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.