Home / 3,811.26-5,716.41-1,345.38

Finding the Fourth Proportional to 3,811.26, 5,716.41 and 1,345.38

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Solution

The fourth proportional to 3,811.26, 5,716.41 and 1,345.38 is: 2,017.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,811.26 : 5,716.41 = 1,345.38 : x
  2. Step 2: Convert to fraction form
    3,811.26/5,716.41 = 1,345.38/x
  3. Step 3: Cross multiply
    3,811.26x = 5,716.41 × 1,345.38
  4. Step 4: Simplify right side
    3,811.26x = 7,690,743.69
  5. Step 5: Solve for x
    x = 7,690,743.69/3,811.26
  6. Step 6: Final answer
    x = 2,017.90

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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.