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Finding the Fourth Proportional to 6,757.71, 10,138.90 and 2,811.09

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Solution

The fourth proportional to 6,757.71, 10,138.90 and 2,811.09 is: 4,217.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,757.71 : 10,138.90 = 2,811.09 : x
  2. Step 2: Convert to fraction form
    6,757.71/10,138.90 = 2,811.09/x
  3. Step 3: Cross multiply
    6,757.71x = 10,138.90 × 2,811.09
  4. Step 4: Simplify right side
    6,757.71x = 28,501,360.40
  5. Step 5: Solve for x
    x = 28,501,360.40/6,757.71
  6. Step 6: Final answer
    x = 4,217.61

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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.