Home / 3,815.83-5,716.45-2,581.12

Finding the Fourth Proportional to 3,815.83, 5,716.45 and 2,581.12

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Solution

The fourth proportional to 3,815.83, 5,716.45 and 2,581.12 is: 3,866.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,815.83 : 5,716.45 = 2,581.12 : x
  2. Step 2: Convert to fraction form
    3,815.83/5,716.45 = 2,581.12/x
  3. Step 3: Cross multiply
    3,815.83x = 5,716.45 × 2,581.12
  4. Step 4: Simplify right side
    3,815.83x = 14,754,843.42
  5. Step 5: Solve for x
    x = 14,754,843.42/3,815.83
  6. Step 6: Final answer
    x = 3,866.75

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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.