Home / 2,966.25-4,450.82-1,990.43

Finding the Fourth Proportional to 2,966.25, 4,450.82 and 1,990.43

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Solution

The fourth proportional to 2,966.25, 4,450.82 and 1,990.43 is: 2,986.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,966.25 : 4,450.82 = 1,990.43 : x
  2. Step 2: Convert to fraction form
    2,966.25/4,450.82 = 1,990.43/x
  3. Step 3: Cross multiply
    2,966.25x = 4,450.82 × 1,990.43
  4. Step 4: Simplify right side
    2,966.25x = 8,859,045.65
  5. Step 5: Solve for x
    x = 8,859,045.65/2,966.25
  6. Step 6: Final answer
    x = 2,986.61

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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.