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Finding the Fourth Proportional to 4,843.22, 6,687.57 and 3,947.09

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Solution

The fourth proportional to 4,843.22, 6,687.57 and 3,947.09 is: 5,450.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,843.22 : 6,687.57 = 3,947.09 : x
  2. Step 2: Convert to fraction form
    4,843.22/6,687.57 = 3,947.09/x
  3. Step 3: Cross multiply
    4,843.22x = 6,687.57 × 3,947.09
  4. Step 4: Simplify right side
    4,843.22x = 26,396,407.23
  5. Step 5: Solve for x
    x = 26,396,407.23/4,843.22
  6. Step 6: Final answer
    x = 5,450.18

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.