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Finding the Fourth Proportional to 4,500.05, 6,750.09 and 1,213.16

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Solution

The fourth proportional to 4,500.05, 6,750.09 and 1,213.16 is: 1,819.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,500.05 : 6,750.09 = 1,213.16 : x
  2. Step 2: Convert to fraction form
    4,500.05/6,750.09 = 1,213.16/x
  3. Step 3: Cross multiply
    4,500.05x = 6,750.09 × 1,213.16
  4. Step 4: Simplify right side
    4,500.05x = 8,188,905.43
  5. Step 5: Solve for x
    x = 8,188,905.43/4,500.05
  6. Step 6: Final answer
    x = 1,819.74

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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.