Home / 2,197.89-3,293.11-1,330.38

Finding the Fourth Proportional to 2,197.89, 3,293.11 and 1,330.38

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Solution

The fourth proportional to 2,197.89, 3,293.11 and 1,330.38 is: 1,993.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,197.89 : 3,293.11 = 1,330.38 : x
  2. Step 2: Convert to fraction form
    2,197.89/3,293.11 = 1,330.38/x
  3. Step 3: Cross multiply
    2,197.89x = 3,293.11 × 1,330.38
  4. Step 4: Simplify right side
    2,197.89x = 4,381,087.68
  5. Step 5: Solve for x
    x = 4,381,087.68/2,197.89
  6. Step 6: Final answer
    x = 1,993.32

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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.