Home / 3,860.70-5,791.06-1,087.37

Finding the Fourth Proportional to 3,860.70, 5,791.06 and 1,087.37

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Solution

The fourth proportional to 3,860.70, 5,791.06 and 1,087.37 is: 1,631.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,860.70 : 5,791.06 = 1,087.37 : x
  2. Step 2: Convert to fraction form
    3,860.70/5,791.06 = 1,087.37/x
  3. Step 3: Cross multiply
    3,860.70x = 5,791.06 × 1,087.37
  4. Step 4: Simplify right side
    3,860.70x = 6,297,036.67
  5. Step 5: Solve for x
    x = 6,297,036.67/3,860.70
  6. Step 6: Final answer
    x = 1,631.06

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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.