Home / 7,930.14-11,897.37-2,736.78

Finding the Fourth Proportional to 7,930.14, 11,897.37 and 2,736.78

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Solution

The fourth proportional to 7,930.14, 11,897.37 and 2,736.78 is: 4,105.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,930.14 : 11,897.37 = 2,736.78 : x
  2. Step 2: Convert to fraction form
    7,930.14/11,897.37 = 2,736.78/x
  3. Step 3: Cross multiply
    7,930.14x = 11,897.37 × 2,736.78
  4. Step 4: Simplify right side
    7,930.14x = 32,560,411.10
  5. Step 5: Solve for x
    x = 32,560,411.10/7,930.14
  6. Step 6: Final answer
    x = 4,105.91

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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.