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Finding the Fourth Proportional to 2,608.88, 3,912.84 and 1,884.56

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Solution

The fourth proportional to 2,608.88, 3,912.84 and 1,884.56 is: 2,826.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,608.88 : 3,912.84 = 1,884.56 : x
  2. Step 2: Convert to fraction form
    2,608.88/3,912.84 = 1,884.56/x
  3. Step 3: Cross multiply
    2,608.88x = 3,912.84 × 1,884.56
  4. Step 4: Simplify right side
    2,608.88x = 7,373,981.75
  5. Step 5: Solve for x
    x = 7,373,981.75/2,608.88
  6. Step 6: Final answer
    x = 2,826.49

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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.