Home / 1,996.70-2,755.49-1,112.55

Finding the Fourth Proportional to 1,996.70, 2,755.49 and 1,112.55

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Solution

The fourth proportional to 1,996.70, 2,755.49 and 1,112.55 is: 1,535.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,996.70 : 2,755.49 = 1,112.55 : x
  2. Step 2: Convert to fraction form
    1,996.70/2,755.49 = 1,112.55/x
  3. Step 3: Cross multiply
    1,996.70x = 2,755.49 × 1,112.55
  4. Step 4: Simplify right side
    1,996.70x = 3,065,620.00
  5. Step 5: Solve for x
    x = 3,065,620.00/1,996.70
  6. Step 6: Final answer
    x = 1,535.35

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1.5x scale

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.