Home / 4,778.14-7,169.64-2,180.74

Finding the Fourth Proportional to 4,778.14, 7,169.64 and 2,180.74

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Solution

The fourth proportional to 4,778.14, 7,169.64 and 2,180.74 is: 3,272.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,778.14 : 7,169.64 = 2,180.74 : x
  2. Step 2: Convert to fraction form
    4,778.14/7,169.64 = 2,180.74/x
  3. Step 3: Cross multiply
    4,778.14x = 7,169.64 × 2,180.74
  4. Step 4: Simplify right side
    4,778.14x = 15,635,120.73
  5. Step 5: Solve for x
    x = 15,635,120.73/4,778.14
  6. Step 6: Final answer
    x = 3,272.22

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1.5x scale

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.