Home / 2,660.28-3,991.26-2,384.64

Finding the Fourth Proportional to 2,660.28, 3,991.26 and 2,384.64

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Solution

The fourth proportional to 2,660.28, 3,991.26 and 2,384.64 is: 3,577.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,660.28 : 3,991.26 = 2,384.64 : x
  2. Step 2: Convert to fraction form
    2,660.28/3,991.26 = 2,384.64/x
  3. Step 3: Cross multiply
    2,660.28x = 3,991.26 × 2,384.64
  4. Step 4: Simplify right side
    2,660.28x = 9,517,718.25
  5. Step 5: Solve for x
    x = 9,517,718.25/2,660.28
  6. Step 6: Final answer
    x = 3,577.71

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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.