Home / 2,285.96-3,428.43-1,361.78

Finding the Fourth Proportional to 2,285.96, 3,428.43 and 1,361.78

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Solution

The fourth proportional to 2,285.96, 3,428.43 and 1,361.78 is: 2,042.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,285.96 : 3,428.43 = 1,361.78 : x
  2. Step 2: Convert to fraction form
    2,285.96/3,428.43 = 1,361.78/x
  3. Step 3: Cross multiply
    2,285.96x = 3,428.43 × 1,361.78
  4. Step 4: Simplify right side
    2,285.96x = 4,668,775.98
  5. Step 5: Solve for x
    x = 4,668,775.98/2,285.96
  6. Step 6: Final answer
    x = 2,042.37

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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.