Home / 2,092.12-3,138.06-938.68

Finding the Fourth Proportional to 2,092.12, 3,138.06 and 938.68

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Solution

The fourth proportional to 2,092.12, 3,138.06 and 938.68 is: 1,407.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,092.12 : 3,138.06 = 938.68 : x
  2. Step 2: Convert to fraction form
    2,092.12/3,138.06 = 938.68/x
  3. Step 3: Cross multiply
    2,092.12x = 3,138.06 × 938.68
  4. Step 4: Simplify right side
    2,092.12x = 2,945,634.16
  5. Step 5: Solve for x
    x = 2,945,634.16/2,092.12
  6. Step 6: Final answer
    x = 1,407.97

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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.