Home / 2,197.38-3,283.16-2,120.82

Finding the Fourth Proportional to 2,197.38, 3,283.16 and 2,120.82

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Solution

The fourth proportional to 2,197.38, 3,283.16 and 2,120.82 is: 3,168.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,197.38 : 3,283.16 = 2,120.82 : x
  2. Step 2: Convert to fraction form
    2,197.38/3,283.16 = 2,120.82/x
  3. Step 3: Cross multiply
    2,197.38x = 3,283.16 × 2,120.82
  4. Step 4: Simplify right side
    2,197.38x = 6,962,991.39
  5. Step 5: Solve for x
    x = 6,962,991.39/2,197.38
  6. Step 6: Final answer
    x = 3,168.77

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.