Home / 3,512.96-4,847.82-1,919.55

Finding the Fourth Proportional to 3,512.96, 4,847.82 and 1,919.55

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Solution

The fourth proportional to 3,512.96, 4,847.82 and 1,919.55 is: 2,648.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,512.96 : 4,847.82 = 1,919.55 : x
  2. Step 2: Convert to fraction form
    3,512.96/4,847.82 = 1,919.55/x
  3. Step 3: Cross multiply
    3,512.96x = 4,847.82 × 1,919.55
  4. Step 4: Simplify right side
    3,512.96x = 9,305,632.88
  5. Step 5: Solve for x
    x = 9,305,632.88/3,512.96
  6. Step 6: Final answer
    x = 2,648.95

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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.