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Finding the Fourth Proportional to 6,757.55, 10,131.99 and 2,811.54

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Solution

The fourth proportional to 6,757.55, 10,131.99 and 2,811.54 is: 4,215.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,757.55 : 10,131.99 = 2,811.54 : x
  2. Step 2: Convert to fraction form
    6,757.55/10,131.99 = 2,811.54/x
  3. Step 3: Cross multiply
    6,757.55x = 10,131.99 × 2,811.54
  4. Step 4: Simplify right side
    6,757.55x = 28,486,484.62
  5. Step 5: Solve for x
    x = 28,486,484.62/6,757.55
  6. Step 6: Final answer
    x = 4,215.51

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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.