Home / 2,112.12-3,167.07-1,234.92

Finding the Fourth Proportional to 2,112.12, 3,167.07 and 1,234.92

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Solution

The fourth proportional to 2,112.12, 3,167.07 and 1,234.92 is: 1,851.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,112.12 : 3,167.07 = 1,234.92 : x
  2. Step 2: Convert to fraction form
    2,112.12/3,167.07 = 1,234.92/x
  3. Step 3: Cross multiply
    2,112.12x = 3,167.07 × 1,234.92
  4. Step 4: Simplify right side
    2,112.12x = 3,911,078.08
  5. Step 5: Solve for x
    x = 3,911,078.08/2,112.12
  6. Step 6: Final answer
    x = 1,851.73

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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.