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Finding the Fourth Proportional to 2,751.07, 4,126.55 and 671.09

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Solution

The fourth proportional to 2,751.07, 4,126.55 and 671.09 is: 1,006.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,751.07 : 4,126.55 = 671.09 : x
  2. Step 2: Convert to fraction form
    2,751.07/4,126.55 = 671.09/x
  3. Step 3: Cross multiply
    2,751.07x = 4,126.55 × 671.09
  4. Step 4: Simplify right side
    2,751.07x = 2,769,286.44
  5. Step 5: Solve for x
    x = 2,769,286.44/2,751.07
  6. Step 6: Final answer
    x = 1,006.62

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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.