Home / 2,556.74-3,836.38-1,324.12

Finding the Fourth Proportional to 2,556.74, 3,836.38 and 1,324.12

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Solution

The fourth proportional to 2,556.74, 3,836.38 and 1,324.12 is: 1,986.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,556.74 : 3,836.38 = 1,324.12 : x
  2. Step 2: Convert to fraction form
    2,556.74/3,836.38 = 1,324.12/x
  3. Step 3: Cross multiply
    2,556.74x = 3,836.38 × 1,324.12
  4. Step 4: Simplify right side
    2,556.74x = 5,079,827.49
  5. Step 5: Solve for x
    x = 5,079,827.49/2,556.74
  6. Step 6: Final answer
    x = 1,986.84

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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.