Home / 6,736.50-10,105.11-2,119.86

Finding the Fourth Proportional to 6,736.50, 10,105.11 and 2,119.86

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Solution

The fourth proportional to 6,736.50, 10,105.11 and 2,119.86 is: 3,179.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,736.50 : 10,105.11 = 2,119.86 : x
  2. Step 2: Convert to fraction form
    6,736.50/10,105.11 = 2,119.86/x
  3. Step 3: Cross multiply
    6,736.50x = 10,105.11 × 2,119.86
  4. Step 4: Simplify right side
    6,736.50x = 21,421,418.48
  5. Step 5: Solve for x
    x = 21,421,418.48/6,736.50
  6. Step 6: Final answer
    x = 3,179.90

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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.