Home / 3,269.87-4,512.42-1,777.79

Finding the Fourth Proportional to 3,269.87, 4,512.42 and 1,777.79

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Solution

The fourth proportional to 3,269.87, 4,512.42 and 1,777.79 is: 2,453.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,269.87 : 4,512.42 = 1,777.79 : x
  2. Step 2: Convert to fraction form
    3,269.87/4,512.42 = 1,777.79/x
  3. Step 3: Cross multiply
    3,269.87x = 4,512.42 × 1,777.79
  4. Step 4: Simplify right side
    3,269.87x = 8,022,112.59
  5. Step 5: Solve for x
    x = 8,022,112.59/3,269.87
  6. Step 6: Final answer
    x = 2,453.34

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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.