Home / 7,738.84-11,609.34-2,543.68

Finding the Fourth Proportional to 7,738.84, 11,609.34 and 2,543.68

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Solution

The fourth proportional to 7,738.84, 11,609.34 and 2,543.68 is: 3,815.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,738.84 : 11,609.34 = 2,543.68 : x
  2. Step 2: Convert to fraction form
    7,738.84/11,609.34 = 2,543.68/x
  3. Step 3: Cross multiply
    7,738.84x = 11,609.34 × 2,543.68
  4. Step 4: Simplify right side
    7,738.84x = 29,530,445.97
  5. Step 5: Solve for x
    x = 29,530,445.97/7,738.84
  6. Step 6: Final answer
    x = 3,815.87

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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.