Home / 3,276.81-4,517.22-2,489.49

Finding the Fourth Proportional to 3,276.81, 4,517.22 and 2,489.49

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Solution

The fourth proportional to 3,276.81, 4,517.22 and 2,489.49 is: 3,431.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,276.81 : 4,517.22 = 2,489.49 : x
  2. Step 2: Convert to fraction form
    3,276.81/4,517.22 = 2,489.49/x
  3. Step 3: Cross multiply
    3,276.81x = 4,517.22 × 2,489.49
  4. Step 4: Simplify right side
    3,276.81x = 11,245,574.02
  5. Step 5: Solve for x
    x = 11,245,574.02/3,276.81
  6. Step 6: Final answer
    x = 3,431.87

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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.