Home / 4,109.26-6,163.80-1,187.56

Finding the Fourth Proportional to 4,109.26, 6,163.80 and 1,187.56

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Solution

The fourth proportional to 4,109.26, 6,163.80 and 1,187.56 is: 1,781.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,109.26 : 6,163.80 = 1,187.56 : x
  2. Step 2: Convert to fraction form
    4,109.26/6,163.80 = 1,187.56/x
  3. Step 3: Cross multiply
    4,109.26x = 6,163.80 × 1,187.56
  4. Step 4: Simplify right side
    4,109.26x = 7,319,882.33
  5. Step 5: Solve for x
    x = 7,319,882.33/4,109.26
  6. Step 6: Final answer
    x = 1,781.31

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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.