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Finding the Fourth Proportional to 2,608.10, 3,912.12 and 633.75

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Solution

The fourth proportional to 2,608.10, 3,912.12 and 633.75 is: 950.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,608.10 : 3,912.12 = 633.75 : x
  2. Step 2: Convert to fraction form
    2,608.10/3,912.12 = 633.75/x
  3. Step 3: Cross multiply
    2,608.10x = 3,912.12 × 633.75
  4. Step 4: Simplify right side
    2,608.10x = 2,479,306.05
  5. Step 5: Solve for x
    x = 2,479,306.05/2,608.10
  6. Step 6: Final answer
    x = 950.62

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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.