Home / 2,642.38-3,963.93-1,343.14

Finding the Fourth Proportional to 2,642.38, 3,963.93 and 1,343.14

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Solution

The fourth proportional to 2,642.38, 3,963.93 and 1,343.14 is: 2,014.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,642.38 : 3,963.93 = 1,343.14 : x
  2. Step 2: Convert to fraction form
    2,642.38/3,963.93 = 1,343.14/x
  3. Step 3: Cross multiply
    2,642.38x = 3,963.93 × 1,343.14
  4. Step 4: Simplify right side
    2,642.38x = 5,324,112.94
  5. Step 5: Solve for x
    x = 5,324,112.94/2,642.38
  6. Step 6: Final answer
    x = 2,014.89

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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.