Home / 3,179.26-4,768.89-1,331.65

Finding the Fourth Proportional to 3,179.26, 4,768.89 and 1,331.65

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Solution

The fourth proportional to 3,179.26, 4,768.89 and 1,331.65 is: 1,997.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,179.26 : 4,768.89 = 1,331.65 : x
  2. Step 2: Convert to fraction form
    3,179.26/4,768.89 = 1,331.65/x
  3. Step 3: Cross multiply
    3,179.26x = 4,768.89 × 1,331.65
  4. Step 4: Simplify right side
    3,179.26x = 6,350,492.37
  5. Step 5: Solve for x
    x = 6,350,492.37/3,179.26
  6. Step 6: Final answer
    x = 1,997.48

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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.