Home / 3,007.20-4,144.94-2,012.12

Finding the Fourth Proportional to 3,007.20, 4,144.94 and 2,012.12

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Solution

The fourth proportional to 3,007.20, 4,144.94 and 2,012.12 is: 2,773.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,007.20 : 4,144.94 = 2,012.12 : x
  2. Step 2: Convert to fraction form
    3,007.20/4,144.94 = 2,012.12/x
  3. Step 3: Cross multiply
    3,007.20x = 4,144.94 × 2,012.12
  4. Step 4: Simplify right side
    3,007.20x = 8,340,116.67
  5. Step 5: Solve for x
    x = 8,340,116.67/3,007.20
  6. Step 6: Final answer
    x = 2,773.38

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Half scale
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.