Home / 3,815.70-5,265.57-2,243.89

Finding the Fourth Proportional to 3,815.70, 5,265.57 and 2,243.89

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Solution

The fourth proportional to 3,815.70, 5,265.57 and 2,243.89 is: 3,096.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,815.70 : 5,265.57 = 2,243.89 : x
  2. Step 2: Convert to fraction form
    3,815.70/5,265.57 = 2,243.89/x
  3. Step 3: Cross multiply
    3,815.70x = 5,265.57 × 2,243.89
  4. Step 4: Simplify right side
    3,815.70x = 11,815,359.87
  5. Step 5: Solve for x
    x = 11,815,359.87/3,815.70
  6. Step 6: Final answer
    x = 3,096.51

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.