Home / 3,860.50-5,791.08-1,087.19

Finding the Fourth Proportional to 3,860.50, 5,791.08 and 1,087.19

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Solution

The fourth proportional to 3,860.50, 5,791.08 and 1,087.19 is: 1,630.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,860.50 : 5,791.08 = 1,087.19 : x
  2. Step 2: Convert to fraction form
    3,860.50/5,791.08 = 1,087.19/x
  3. Step 3: Cross multiply
    3,860.50x = 5,791.08 × 1,087.19
  4. Step 4: Simplify right side
    3,860.50x = 6,296,022.82
  5. Step 5: Solve for x
    x = 6,296,022.82/3,860.50
  6. Step 6: Final answer
    x = 1,630.88

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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.