Home / 1,997.13-2,756.10-1,112.94

Finding the Fourth Proportional to 1,997.13, 2,756.10 and 1,112.94

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Solution

The fourth proportional to 1,997.13, 2,756.10 and 1,112.94 is: 1,535.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,997.13 : 2,756.10 = 1,112.94 : x
  2. Step 2: Convert to fraction form
    1,997.13/2,756.10 = 1,112.94/x
  3. Step 3: Cross multiply
    1,997.13x = 2,756.10 × 1,112.94
  4. Step 4: Simplify right side
    1,997.13x = 3,067,373.93
  5. Step 5: Solve for x
    x = 3,067,373.93/1,997.13
  6. Step 6: Final answer
    x = 1,535.89

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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.