Home / 3,790.43-5,686.79-1,942.85

Finding the Fourth Proportional to 3,790.43, 5,686.79 and 1,942.85

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Solution

The fourth proportional to 3,790.43, 5,686.79 and 1,942.85 is: 2,914.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,790.43 : 5,686.79 = 1,942.85 : x
  2. Step 2: Convert to fraction form
    3,790.43/5,686.79 = 1,942.85/x
  3. Step 3: Cross multiply
    3,790.43x = 5,686.79 × 1,942.85
  4. Step 4: Simplify right side
    3,790.43x = 11,048,604.36
  5. Step 5: Solve for x
    x = 11,048,604.36/3,790.43
  6. Step 6: Final answer
    x = 2,914.87

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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.