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Finding the Fourth Proportional to 3,275.67, 4,519.10 and 1,998.90

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Solution

The fourth proportional to 3,275.67, 4,519.10 and 1,998.90 is: 2,757.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,275.67 : 4,519.10 = 1,998.90 : x
  2. Step 2: Convert to fraction form
    3,275.67/4,519.10 = 1,998.90/x
  3. Step 3: Cross multiply
    3,275.67x = 4,519.10 × 1,998.90
  4. Step 4: Simplify right side
    3,275.67x = 9,033,230.44
  5. Step 5: Solve for x
    x = 9,033,230.44/3,275.67
  6. Step 6: Final answer
    x = 2,757.67

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.