Home / 2,118.94-3,177.19-1,996.63

Finding the Fourth Proportional to 2,118.94, 3,177.19 and 1,996.63

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Solution

The fourth proportional to 2,118.94, 3,177.19 and 1,996.63 is: 2,993.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,118.94 : 3,177.19 = 1,996.63 : x
  2. Step 2: Convert to fraction form
    2,118.94/3,177.19 = 1,996.63/x
  3. Step 3: Cross multiply
    2,118.94x = 3,177.19 × 1,996.63
  4. Step 4: Simplify right side
    2,118.94x = 6,343,651.99
  5. Step 5: Solve for x
    x = 6,343,651.99/2,118.94
  6. Step 6: Final answer
    x = 2,993.79

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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.