Home / 2,197.38-3,297.78-1,273.80

Finding the Fourth Proportional to 2,197.38, 3,297.78 and 1,273.80

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Solution

The fourth proportional to 2,197.38, 3,297.78 and 1,273.80 is: 1,911.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,197.38 : 3,297.78 = 1,273.80 : x
  2. Step 2: Convert to fraction form
    2,197.38/3,297.78 = 1,273.80/x
  3. Step 3: Cross multiply
    2,197.38x = 3,297.78 × 1,273.80
  4. Step 4: Simplify right side
    2,197.38x = 4,200,712.16
  5. Step 5: Solve for x
    x = 4,200,712.16/2,197.38
  6. Step 6: Final answer
    x = 1,911.69

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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.