Home / 4,479-6,717.78-3,176.52

Finding the Fourth Proportional to 4,479, 6,717.78 and 3,176.52

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Solution

The fourth proportional to 4,479, 6,717.78 and 3,176.52 is: 4,764.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,479 : 6,717.78 = 3,176.52 : x
  2. Step 2: Convert to fraction form
    4,479/6,717.78 = 3,176.52/x
  3. Step 3: Cross multiply
    4,479x = 6,717.78 × 3,176.52
  4. Step 4: Simplify right side
    4,479x = 21,339,162.53
  5. Step 5: Solve for x
    x = 21,339,162.53/4,479
  6. Step 6: Final answer
    x = 4,764.27

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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.