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Finding the Fourth Proportional to 3,008.59, 4,512.89 and 1,276.09

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Solution

The fourth proportional to 3,008.59, 4,512.89 and 1,276.09 is: 1,914.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,008.59 : 4,512.89 = 1,276.09 : x
  2. Step 2: Convert to fraction form
    3,008.59/4,512.89 = 1,276.09/x
  3. Step 3: Cross multiply
    3,008.59x = 4,512.89 × 1,276.09
  4. Step 4: Simplify right side
    3,008.59x = 5,758,847.42
  5. Step 5: Solve for x
    x = 5,758,847.42/3,008.59
  6. Step 6: Final answer
    x = 1,914.14

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Similar ratio
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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.