Home / 3,896.28-5,376.78-2,323.80

Finding the Fourth Proportional to 3,896.28, 5,376.78 and 2,323.80

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Solution

The fourth proportional to 3,896.28, 5,376.78 and 2,323.80 is: 3,206.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,896.28 : 5,376.78 = 2,323.80 : x
  2. Step 2: Convert to fraction form
    3,896.28/5,376.78 = 2,323.80/x
  3. Step 3: Cross multiply
    3,896.28x = 5,376.78 × 2,323.80
  4. Step 4: Simplify right side
    3,896.28x = 12,494,561.36
  5. Step 5: Solve for x
    x = 12,494,561.36/3,896.28
  6. Step 6: Final answer
    x = 3,206.79

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.