Home / 2,190.88-3,286.80-1,036

Finding the Fourth Proportional to 2,190.88, 3,286.80 and 1,036

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Solution

The fourth proportional to 2,190.88, 3,286.80 and 1,036 is: 1,554.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,190.88 : 3,286.80 = 1,036 : x
  2. Step 2: Convert to fraction form
    2,190.88/3,286.80 = 1,036/x
  3. Step 3: Cross multiply
    2,190.88x = 3,286.80 × 1,036
  4. Step 4: Simplify right side
    2,190.88x = 3,405,124.80
  5. Step 5: Solve for x
    x = 3,405,124.80/2,190.88
  6. Step 6: Final answer
    x = 1,554.23

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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.