Home / 3,578.28-4,935.39-2,086.11

Finding the Fourth Proportional to 3,578.28, 4,935.39 and 2,086.11

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Solution

The fourth proportional to 3,578.28, 4,935.39 and 2,086.11 is: 2,877.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,578.28 : 4,935.39 = 2,086.11 : x
  2. Step 2: Convert to fraction form
    3,578.28/4,935.39 = 2,086.11/x
  3. Step 3: Cross multiply
    3,578.28x = 4,935.39 × 2,086.11
  4. Step 4: Simplify right side
    3,578.28x = 10,295,766.43
  5. Step 5: Solve for x
    x = 10,295,766.43/3,578.28
  6. Step 6: Final answer
    x = 2,877.29

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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.