Home / 3,817.88-5,719.36-2,631.71

Finding the Fourth Proportional to 3,817.88, 5,719.36 and 2,631.71

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Solution

The fourth proportional to 3,817.88, 5,719.36 and 2,631.71 is: 3,942.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,817.88 : 5,719.36 = 2,631.71 : x
  2. Step 2: Convert to fraction form
    3,817.88/5,719.36 = 2,631.71/x
  3. Step 3: Cross multiply
    3,817.88x = 5,719.36 × 2,631.71
  4. Step 4: Simplify right side
    3,817.88x = 15,051,655.15
  5. Step 5: Solve for x
    x = 15,051,655.15/3,817.88
  6. Step 6: Final answer
    x = 3,942.42

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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.