Home / 4,081.31-6,121.31-1,159.82

Finding the Fourth Proportional to 4,081.31, 6,121.31 and 1,159.82

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Solution

The fourth proportional to 4,081.31, 6,121.31 and 1,159.82 is: 1,739.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,081.31 : 6,121.31 = 1,159.82 : x
  2. Step 2: Convert to fraction form
    4,081.31/6,121.31 = 1,159.82/x
  3. Step 3: Cross multiply
    4,081.31x = 6,121.31 × 1,159.82
  4. Step 4: Simplify right side
    4,081.31x = 7,099,581.36
  5. Step 5: Solve for x
    x = 7,099,581.36/4,081.31
  6. Step 6: Final answer
    x = 1,739.54

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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.