Home / 3,019.38-4,165.20-2,012.82

Finding the Fourth Proportional to 3,019.38, 4,165.20 and 2,012.82

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Solution

The fourth proportional to 3,019.38, 4,165.20 and 2,012.82 is: 2,776.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,019.38 : 4,165.20 = 2,012.82 : x
  2. Step 2: Convert to fraction form
    3,019.38/4,165.20 = 2,012.82/x
  3. Step 3: Cross multiply
    3,019.38x = 4,165.20 × 2,012.82
  4. Step 4: Simplify right side
    3,019.38x = 8,383,797.86
  5. Step 5: Solve for x
    x = 8,383,797.86/3,019.38
  6. Step 6: Final answer
    x = 2,776.66

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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.