Home / 5,137.62-7,709.27-2,540.76

Finding the Fourth Proportional to 5,137.62, 7,709.27 and 2,540.76

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Solution

The fourth proportional to 5,137.62, 7,709.27 and 2,540.76 is: 3,812.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,137.62 : 7,709.27 = 2,540.76 : x
  2. Step 2: Convert to fraction form
    5,137.62/7,709.27 = 2,540.76/x
  3. Step 3: Cross multiply
    5,137.62x = 7,709.27 × 2,540.76
  4. Step 4: Simplify right side
    5,137.62x = 19,587,392.14
  5. Step 5: Solve for x
    x = 19,587,392.14/5,137.62
  6. Step 6: Final answer
    x = 3,812.54

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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.