Home / 3,943.45-5,918.79-1,997.02

Finding the Fourth Proportional to 3,943.45, 5,918.79 and 1,997.02

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Solution

The fourth proportional to 3,943.45, 5,918.79 and 1,997.02 is: 2,997.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,943.45 : 5,918.79 = 1,997.02 : x
  2. Step 2: Convert to fraction form
    3,943.45/5,918.79 = 1,997.02/x
  3. Step 3: Cross multiply
    3,943.45x = 5,918.79 × 1,997.02
  4. Step 4: Simplify right side
    3,943.45x = 11,819,942.01
  5. Step 5: Solve for x
    x = 11,819,942.01/3,943.45
  6. Step 6: Final answer
    x = 2,997.36

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.