Home / 2,568.66-3,849.21-1,398.48

Finding the Fourth Proportional to 2,568.66, 3,849.21 and 1,398.48

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Solution

The fourth proportional to 2,568.66, 3,849.21 and 1,398.48 is: 2,095.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,568.66 : 3,849.21 = 1,398.48 : x
  2. Step 2: Convert to fraction form
    2,568.66/3,849.21 = 1,398.48/x
  3. Step 3: Cross multiply
    2,568.66x = 3,849.21 × 1,398.48
  4. Step 4: Simplify right side
    2,568.66x = 5,383,043.20
  5. Step 5: Solve for x
    x = 5,383,043.20/2,568.66
  6. Step 6: Final answer
    x = 2,095.66

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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.