Home / 2,696.72-3,705.66-2,198.28

Finding the Fourth Proportional to 2,696.72, 3,705.66 and 2,198.28

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Solution

The fourth proportional to 2,696.72, 3,705.66 and 2,198.28 is: 3,020.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,696.72 : 3,705.66 = 2,198.28 : x
  2. Step 2: Convert to fraction form
    2,696.72/3,705.66 = 2,198.28/x
  3. Step 3: Cross multiply
    2,696.72x = 3,705.66 × 2,198.28
  4. Step 4: Simplify right side
    2,696.72x = 8,146,078.26
  5. Step 5: Solve for x
    x = 8,146,078.26/2,696.72
  6. Step 6: Final answer
    x = 3,020.74

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.