Home / 1,996.98-2,755.80-1,112.77

Finding the Fourth Proportional to 1,996.98, 2,755.80 and 1,112.77

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Solution

The fourth proportional to 1,996.98, 2,755.80 and 1,112.77 is: 1,535.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,996.98 : 2,755.80 = 1,112.77 : x
  2. Step 2: Convert to fraction form
    1,996.98/2,755.80 = 1,112.77/x
  3. Step 3: Cross multiply
    1,996.98x = 2,755.80 × 1,112.77
  4. Step 4: Simplify right side
    1,996.98x = 3,066,571.57
  5. Step 5: Solve for x
    x = 3,066,571.57/1,996.98
  6. Step 6: Final answer
    x = 1,535.60

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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.