Home / 4,109.43-6,164.37-1,187.66

Finding the Fourth Proportional to 4,109.43, 6,164.37 and 1,187.66

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Solution

The fourth proportional to 4,109.43, 6,164.37 and 1,187.66 is: 1,781.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,109.43 : 6,164.37 = 1,187.66 : x
  2. Step 2: Convert to fraction form
    4,109.43/6,164.37 = 1,187.66/x
  3. Step 3: Cross multiply
    4,109.43x = 6,164.37 × 1,187.66
  4. Step 4: Simplify right side
    4,109.43x = 7,321,144.85
  5. Step 5: Solve for x
    x = 7,321,144.85/4,109.43
  6. Step 6: Final answer
    x = 1,781.55

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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.