Home / 7,819.62-11,727.60-2,553.28

Finding the Fourth Proportional to 7,819.62, 11,727.60 and 2,553.28

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Solution

The fourth proportional to 7,819.62, 11,727.60 and 2,553.28 is: 3,829.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,819.62 : 11,727.60 = 2,553.28 : x
  2. Step 2: Convert to fraction form
    7,819.62/11,727.60 = 2,553.28/x
  3. Step 3: Cross multiply
    7,819.62x = 11,727.60 × 2,553.28
  4. Step 4: Simplify right side
    7,819.62x = 29,943,846.53
  5. Step 5: Solve for x
    x = 29,943,846.53/7,819.62
  6. Step 6: Final answer
    x = 3,829.32

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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.