Home / 1,811.31-2,716.92-1,450.46

Finding the Fourth Proportional to 1,811.31, 2,716.92 and 1,450.46

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Solution

The fourth proportional to 1,811.31, 2,716.92 and 1,450.46 is: 2,175.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,811.31 : 2,716.92 = 1,450.46 : x
  2. Step 2: Convert to fraction form
    1,811.31/2,716.92 = 1,450.46/x
  3. Step 3: Cross multiply
    1,811.31x = 2,716.92 × 1,450.46
  4. Step 4: Simplify right side
    1,811.31x = 3,940,770.20
  5. Step 5: Solve for x
    x = 3,940,770.20/1,811.31
  6. Step 6: Final answer
    x = 2,175.65

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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.