Home / 1,996.88-2,755.26-1,211.12

Finding the Fourth Proportional to 1,996.88, 2,755.26 and 1,211.12

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Solution

The fourth proportional to 1,996.88, 2,755.26 and 1,211.12 is: 1,671.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,996.88 : 2,755.26 = 1,211.12 : x
  2. Step 2: Convert to fraction form
    1,996.88/2,755.26 = 1,211.12/x
  3. Step 3: Cross multiply
    1,996.88x = 2,755.26 × 1,211.12
  4. Step 4: Simplify right side
    1,996.88x = 3,336,950.49
  5. Step 5: Solve for x
    x = 3,336,950.49/1,996.88
  6. Step 6: Final answer
    x = 1,671.08

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.