Home / 3,578.10-4,937.85-2,006.28

Finding the Fourth Proportional to 3,578.10, 4,937.85 and 2,006.28

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Solution

The fourth proportional to 3,578.10, 4,937.85 and 2,006.28 is: 2,768.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,578.10 : 4,937.85 = 2,006.28 : x
  2. Step 2: Convert to fraction form
    3,578.10/4,937.85 = 2,006.28/x
  3. Step 3: Cross multiply
    3,578.10x = 4,937.85 × 2,006.28
  4. Step 4: Simplify right side
    3,578.10x = 9,906,709.70
  5. Step 5: Solve for x
    x = 9,906,709.70/3,578.10
  6. Step 6: Final answer
    x = 2,768.71

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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.