Home / 2,236.75-3,086.87-1,292.73

Finding the Fourth Proportional to 2,236.75, 3,086.87 and 1,292.73

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Solution

The fourth proportional to 2,236.75, 3,086.87 and 1,292.73 is: 1,784.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,236.75 : 3,086.87 = 1,292.73 : x
  2. Step 2: Convert to fraction form
    2,236.75/3,086.87 = 1,292.73/x
  3. Step 3: Cross multiply
    2,236.75x = 3,086.87 × 1,292.73
  4. Step 4: Simplify right side
    2,236.75x = 3,990,489.46
  5. Step 5: Solve for x
    x = 3,990,489.46/2,236.75
  6. Step 6: Final answer
    x = 1,784.06

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Double scale
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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.