Home / 4,081.19-6,121.85-1,159.38

Finding the Fourth Proportional to 4,081.19, 6,121.85 and 1,159.38

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Solution

The fourth proportional to 4,081.19, 6,121.85 and 1,159.38 is: 1,739.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,081.19 : 6,121.85 = 1,159.38 : x
  2. Step 2: Convert to fraction form
    4,081.19/6,121.85 = 1,159.38/x
  3. Step 3: Cross multiply
    4,081.19x = 6,121.85 × 1,159.38
  4. Step 4: Simplify right side
    4,081.19x = 7,097,544.66
  5. Step 5: Solve for x
    x = 7,097,544.66/4,081.19
  6. Step 6: Final answer
    x = 1,739.09

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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.