Home / 5,286.75-7,930.19-2,513.69

Finding the Fourth Proportional to 5,286.75, 7,930.19 and 2,513.69

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Solution

The fourth proportional to 5,286.75, 7,930.19 and 2,513.69 is: 3,770.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,286.75 : 7,930.19 = 2,513.69 : x
  2. Step 2: Convert to fraction form
    5,286.75/7,930.19 = 2,513.69/x
  3. Step 3: Cross multiply
    5,286.75x = 7,930.19 × 2,513.69
  4. Step 4: Simplify right side
    5,286.75x = 19,934,039.30
  5. Step 5: Solve for x
    x = 19,934,039.30/5,286.75
  6. Step 6: Final answer
    x = 3,770.57

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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.