Home / 2,556.31-3,815.81-2,193.43

Finding the Fourth Proportional to 2,556.31, 3,815.81 and 2,193.43

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Solution

The fourth proportional to 2,556.31, 3,815.81 and 2,193.43 is: 3,274.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,556.31 : 3,815.81 = 2,193.43 : x
  2. Step 2: Convert to fraction form
    2,556.31/3,815.81 = 2,193.43/x
  3. Step 3: Cross multiply
    2,556.31x = 3,815.81 × 2,193.43
  4. Step 4: Simplify right side
    2,556.31x = 8,369,691.62
  5. Step 5: Solve for x
    x = 8,369,691.62/2,556.31
  6. Step 6: Final answer
    x = 3,274.13

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.