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Finding the Fourth Proportional to 4,500.11, 6,750.20 and 1,213.22

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Solution

The fourth proportional to 4,500.11, 6,750.20 and 1,213.22 is: 1,819.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,500.11 : 6,750.20 = 1,213.22 : x
  2. Step 2: Convert to fraction form
    4,500.11/6,750.20 = 1,213.22/x
  3. Step 3: Cross multiply
    4,500.11x = 6,750.20 × 1,213.22
  4. Step 4: Simplify right side
    4,500.11x = 8,189,497.55
  5. Step 5: Solve for x
    x = 8,189,497.55/4,500.11
  6. Step 6: Final answer
    x = 1,819.84

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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.