Home / 3,868.91-5,795.60-1,786.09

Finding the Fourth Proportional to 3,868.91, 5,795.60 and 1,786.09

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Solution

The fourth proportional to 3,868.91, 5,795.60 and 1,786.09 is: 2,675.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,868.91 : 5,795.60 = 1,786.09 : x
  2. Step 2: Convert to fraction form
    3,868.91/5,795.60 = 1,786.09/x
  3. Step 3: Cross multiply
    3,868.91x = 5,795.60 × 1,786.09
  4. Step 4: Simplify right side
    3,868.91x = 10,351,434.23
  5. Step 5: Solve for x
    x = 10,351,434.23/3,868.91
  6. Step 6: Final answer
    x = 2,675.55

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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.