Home / 3,860.93-5,790.35-1,912.61

Finding the Fourth Proportional to 3,860.93, 5,790.35 and 1,912.61

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Solution

The fourth proportional to 3,860.93, 5,790.35 and 1,912.61 is: 2,868.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,860.93 : 5,790.35 = 1,912.61 : x
  2. Step 2: Convert to fraction form
    3,860.93/5,790.35 = 1,912.61/x
  3. Step 3: Cross multiply
    3,860.93x = 5,790.35 × 1,912.61
  4. Step 4: Simplify right side
    3,860.93x = 11,074,642.80
  5. Step 5: Solve for x
    x = 11,074,642.80/3,860.93
  6. Step 6: Final answer
    x = 2,868.39

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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.