Home / 1,996.64-2,755.19-1,112.43

Finding the Fourth Proportional to 1,996.64, 2,755.19 and 1,112.43

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Solution

The fourth proportional to 1,996.64, 2,755.19 and 1,112.43 is: 1,535.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,996.64 : 2,755.19 = 1,112.43 : x
  2. Step 2: Convert to fraction form
    1,996.64/2,755.19 = 1,112.43/x
  3. Step 3: Cross multiply
    1,996.64x = 2,755.19 × 1,112.43
  4. Step 4: Simplify right side
    1,996.64x = 3,064,936.67
  5. Step 5: Solve for x
    x = 3,064,936.67/1,996.64
  6. Step 6: Final answer
    x = 1,535.05

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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.