Home / 3,278.25-4,917.42-1,086.93

Finding the Fourth Proportional to 3,278.25, 4,917.42 and 1,086.93

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Solution

The fourth proportional to 3,278.25, 4,917.42 and 1,086.93 is: 1,630.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,278.25 : 4,917.42 = 1,086.93 : x
  2. Step 2: Convert to fraction form
    3,278.25/4,917.42 = 1,086.93/x
  3. Step 3: Cross multiply
    3,278.25x = 4,917.42 × 1,086.93
  4. Step 4: Simplify right side
    3,278.25x = 5,344,891.32
  5. Step 5: Solve for x
    x = 5,344,891.32/3,278.25
  6. Step 6: Final answer
    x = 1,630.41

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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.