Home / 3,179.88-4,768.89-1,231.62

Finding the Fourth Proportional to 3,179.88, 4,768.89 and 1,231.62

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Solution

The fourth proportional to 3,179.88, 4,768.89 and 1,231.62 is: 1,847.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,179.88 : 4,768.89 = 1,231.62 : x
  2. Step 2: Convert to fraction form
    3,179.88/4,768.89 = 1,231.62/x
  3. Step 3: Cross multiply
    3,179.88x = 4,768.89 × 1,231.62
  4. Step 4: Simplify right side
    3,179.88x = 5,873,460.30
  5. Step 5: Solve for x
    x = 5,873,460.30/3,179.88
  6. Step 6: Final answer
    x = 1,847.07

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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.