Home / 2,181.06-3,286.26-1,945.26

Finding the Fourth Proportional to 2,181.06, 3,286.26 and 1,945.26

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Solution

The fourth proportional to 2,181.06, 3,286.26 and 1,945.26 is: 2,930.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,181.06 : 3,286.26 = 1,945.26 : x
  2. Step 2: Convert to fraction form
    2,181.06/3,286.26 = 1,945.26/x
  3. Step 3: Cross multiply
    2,181.06x = 3,286.26 × 1,945.26
  4. Step 4: Simplify right side
    2,181.06x = 6,392,630.13
  5. Step 5: Solve for x
    x = 6,392,630.13/2,181.06
  6. Step 6: Final answer
    x = 2,930.97

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.