Home / 6,815.76-10,215.96-3,355.44

Finding the Fourth Proportional to 6,815.76, 10,215.96 and 3,355.44

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Solution

The fourth proportional to 6,815.76, 10,215.96 and 3,355.44 is: 5,029.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,815.76 : 10,215.96 = 3,355.44 : x
  2. Step 2: Convert to fraction form
    6,815.76/10,215.96 = 3,355.44/x
  3. Step 3: Cross multiply
    6,815.76x = 10,215.96 × 3,355.44
  4. Step 4: Simplify right side
    6,815.76x = 34,279,040.82
  5. Step 5: Solve for x
    x = 34,279,040.82/6,815.76
  6. Step 6: Final answer
    x = 5,029.38

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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.