Home / 3,269.91-4,512.38-1,777.79

Finding the Fourth Proportional to 3,269.91, 4,512.38 and 1,777.79

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Solution

The fourth proportional to 3,269.91, 4,512.38 and 1,777.79 is: 2,453.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,269.91 : 4,512.38 = 1,777.79 : x
  2. Step 2: Convert to fraction form
    3,269.91/4,512.38 = 1,777.79/x
  3. Step 3: Cross multiply
    3,269.91x = 4,512.38 × 1,777.79
  4. Step 4: Simplify right side
    3,269.91x = 8,022,079.77
  5. Step 5: Solve for x
    x = 8,022,079.77/3,269.91
  6. Step 6: Final answer
    x = 2,453.30

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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.