Home / 3,942.69-5,914.23-1,310.43

Finding the Fourth Proportional to 3,942.69, 5,914.23 and 1,310.43

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Solution

The fourth proportional to 3,942.69, 5,914.23 and 1,310.43 is: 1,965.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,942.69 : 5,914.23 = 1,310.43 : x
  2. Step 2: Convert to fraction form
    3,942.69/5,914.23 = 1,310.43/x
  3. Step 3: Cross multiply
    3,942.69x = 5,914.23 × 1,310.43
  4. Step 4: Simplify right side
    3,942.69x = 7,750,184.42
  5. Step 5: Solve for x
    x = 7,750,184.42/3,942.69
  6. Step 6: Final answer
    x = 1,965.71

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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.