Home / 2,197.18-3,297.12-1,992.11

Finding the Fourth Proportional to 2,197.18, 3,297.12 and 1,992.11

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Solution

The fourth proportional to 2,197.18, 3,297.12 and 1,992.11 is: 2,989.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,197.18 : 3,297.12 = 1,992.11 : x
  2. Step 2: Convert to fraction form
    2,197.18/3,297.12 = 1,992.11/x
  3. Step 3: Cross multiply
    2,197.18x = 3,297.12 × 1,992.11
  4. Step 4: Simplify right side
    2,197.18x = 6,568,233.97
  5. Step 5: Solve for x
    x = 6,568,233.97/2,197.18
  6. Step 6: Final answer
    x = 2,989.40

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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.