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Finding the Fourth Proportional to 8,608.41, 12,914.90 and 2,765.18

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Solution

The fourth proportional to 8,608.41, 12,914.90 and 2,765.18 is: 4,148.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,608.41 : 12,914.90 = 2,765.18 : x
  2. Step 2: Convert to fraction form
    8,608.41/12,914.90 = 2,765.18/x
  3. Step 3: Cross multiply
    8,608.41x = 12,914.90 × 2,765.18
  4. Step 4: Simplify right side
    8,608.41x = 35,711,944.78
  5. Step 5: Solve for x
    x = 35,711,944.78/8,608.41
  6. Step 6: Final answer
    x = 4,148.49

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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.