Home / 1,996.58-2,755.11-1,112.47

Finding the Fourth Proportional to 1,996.58, 2,755.11 and 1,112.47

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Solution

The fourth proportional to 1,996.58, 2,755.11 and 1,112.47 is: 1,535.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,996.58 : 2,755.11 = 1,112.47 : x
  2. Step 2: Convert to fraction form
    1,996.58/2,755.11 = 1,112.47/x
  3. Step 3: Cross multiply
    1,996.58x = 2,755.11 × 1,112.47
  4. Step 4: Simplify right side
    1,996.58x = 3,064,974.51
  5. Step 5: Solve for x
    x = 3,064,974.51/1,996.58
  6. Step 6: Final answer
    x = 1,535.11

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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.