Home / 3,969.28-5,954.12-3,274.66

Finding the Fourth Proportional to 3,969.28, 5,954.12 and 3,274.66

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Solution

The fourth proportional to 3,969.28, 5,954.12 and 3,274.66 is: 4,912.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,969.28 : 5,954.12 = 3,274.66 : x
  2. Step 2: Convert to fraction form
    3,969.28/5,954.12 = 3,274.66/x
  3. Step 3: Cross multiply
    3,969.28x = 5,954.12 × 3,274.66
  4. Step 4: Simplify right side
    3,969.28x = 19,497,718.60
  5. Step 5: Solve for x
    x = 19,497,718.60/3,969.28
  6. Step 6: Final answer
    x = 4,912.16

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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.