Home / 4,778.48-7,163.68-3,320.48

Finding the Fourth Proportional to 4,778.48, 7,163.68 and 3,320.48

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Solution

The fourth proportional to 4,778.48, 7,163.68 and 3,320.48 is: 4,977.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,778.48 : 7,163.68 = 3,320.48 : x
  2. Step 2: Convert to fraction form
    4,778.48/7,163.68 = 3,320.48/x
  3. Step 3: Cross multiply
    4,778.48x = 7,163.68 × 3,320.48
  4. Step 4: Simplify right side
    4,778.48x = 23,786,856.17
  5. Step 5: Solve for x
    x = 23,786,856.17/4,778.48
  6. Step 6: Final answer
    x = 4,977.91

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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.