Home / 3,836.80-5,756.41-1,371.56

Finding the Fourth Proportional to 3,836.80, 5,756.41 and 1,371.56

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Solution

The fourth proportional to 3,836.80, 5,756.41 and 1,371.56 is: 2,057.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,836.80 : 5,756.41 = 1,371.56 : x
  2. Step 2: Convert to fraction form
    3,836.80/5,756.41 = 1,371.56/x
  3. Step 3: Cross multiply
    3,836.80x = 5,756.41 × 1,371.56
  4. Step 4: Simplify right side
    3,836.80x = 7,895,277.81
  5. Step 5: Solve for x
    x = 7,895,277.81/3,836.80
  6. Step 6: Final answer
    x = 2,057.78

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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.