Home / 7,897.87-11,836.56-3,212.43

Finding the Fourth Proportional to 7,897.87, 11,836.56 and 3,212.43

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Solution

The fourth proportional to 7,897.87, 11,836.56 and 3,212.43 is: 4,814.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,897.87 : 11,836.56 = 3,212.43 : x
  2. Step 2: Convert to fraction form
    7,897.87/11,836.56 = 3,212.43/x
  3. Step 3: Cross multiply
    7,897.87x = 11,836.56 × 3,212.43
  4. Step 4: Simplify right side
    7,897.87x = 38,024,120.44
  5. Step 5: Solve for x
    x = 38,024,120.44/7,897.87
  6. Step 6: Final answer
    x = 4,814.48

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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.