Home / 3,081.03-4,618.62-1,131.75

Finding the Fourth Proportional to 3,081.03, 4,618.62 and 1,131.75

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Solution

The fourth proportional to 3,081.03, 4,618.62 and 1,131.75 is: 1,696.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,081.03 : 4,618.62 = 1,131.75 : x
  2. Step 2: Convert to fraction form
    3,081.03/4,618.62 = 1,131.75/x
  3. Step 3: Cross multiply
    3,081.03x = 4,618.62 × 1,131.75
  4. Step 4: Simplify right side
    3,081.03x = 5,227,123.19
  5. Step 5: Solve for x
    x = 5,227,123.19/3,081.03
  6. Step 6: Final answer
    x = 1,696.55

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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.