Home / 3,860.85-5,791.04-2,687.43

Finding the Fourth Proportional to 3,860.85, 5,791.04 and 2,687.43

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Solution

The fourth proportional to 3,860.85, 5,791.04 and 2,687.43 is: 4,030.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,860.85 : 5,791.04 = 2,687.43 : x
  2. Step 2: Convert to fraction form
    3,860.85/5,791.04 = 2,687.43/x
  3. Step 3: Cross multiply
    3,860.85x = 5,791.04 × 2,687.43
  4. Step 4: Simplify right side
    3,860.85x = 15,563,014.63
  5. Step 5: Solve for x
    x = 15,563,014.63/3,860.85
  6. Step 6: Final answer
    x = 4,030.98

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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.