Home / 3,310.20-4,965.66-1,120.50

Finding the Fourth Proportional to 3,310.20, 4,965.66 and 1,120.50

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Solution

The fourth proportional to 3,310.20, 4,965.66 and 1,120.50 is: 1,680.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,310.20 : 4,965.66 = 1,120.50 : x
  2. Step 2: Convert to fraction form
    3,310.20/4,965.66 = 1,120.50/x
  3. Step 3: Cross multiply
    3,310.20x = 4,965.66 × 1,120.50
  4. Step 4: Simplify right side
    3,310.20x = 5,564,022.03
  5. Step 5: Solve for x
    x = 5,564,022.03/3,310.20
  6. Step 6: Final answer
    x = 1,680.87

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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.