Home / 2,185.28-3,274.85-1,195.55

Finding the Fourth Proportional to 2,185.28, 3,274.85 and 1,195.55

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Solution

The fourth proportional to 2,185.28, 3,274.85 and 1,195.55 is: 1,791.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,185.28 : 3,274.85 = 1,195.55 : x
  2. Step 2: Convert to fraction form
    2,185.28/3,274.85 = 1,195.55/x
  3. Step 3: Cross multiply
    2,185.28x = 3,274.85 × 1,195.55
  4. Step 4: Simplify right side
    2,185.28x = 3,915,264.23
  5. Step 5: Solve for x
    x = 3,915,264.23/2,185.28
  6. Step 6: Final answer
    x = 1,791.65

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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.