Home / 2,285.20-3,428.52-1,361.80

Finding the Fourth Proportional to 2,285.20, 3,428.52 and 1,361.80

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Solution

The fourth proportional to 2,285.20, 3,428.52 and 1,361.80 is: 2,043.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,285.20 : 3,428.52 = 1,361.80 : x
  2. Step 2: Convert to fraction form
    2,285.20/3,428.52 = 1,361.80/x
  3. Step 3: Cross multiply
    2,285.20x = 3,428.52 × 1,361.80
  4. Step 4: Simplify right side
    2,285.20x = 4,668,958.54
  5. Step 5: Solve for x
    x = 4,668,958.54/2,285.20
  6. Step 6: Final answer
    x = 2,043.13

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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.