Home / 3,738.94-5,611.88-1,891.36

Finding the Fourth Proportional to 3,738.94, 5,611.88 and 1,891.36

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Solution

The fourth proportional to 3,738.94, 5,611.88 and 1,891.36 is: 2,838.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,738.94 : 5,611.88 = 1,891.36 : x
  2. Step 2: Convert to fraction form
    3,738.94/5,611.88 = 1,891.36/x
  3. Step 3: Cross multiply
    3,738.94x = 5,611.88 × 1,891.36
  4. Step 4: Simplify right side
    3,738.94x = 10,614,047.84
  5. Step 5: Solve for x
    x = 10,614,047.84/3,738.94
  6. Step 6: Final answer
    x = 2,838.79

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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.