Home / 3,578.66-4,938.77-2,006.75

Finding the Fourth Proportional to 3,578.66, 4,938.77 and 2,006.75

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Solution

The fourth proportional to 3,578.66, 4,938.77 and 2,006.75 is: 2,769.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,578.66 : 4,938.77 = 2,006.75 : x
  2. Step 2: Convert to fraction form
    3,578.66/4,938.77 = 2,006.75/x
  3. Step 3: Cross multiply
    3,578.66x = 4,938.77 × 2,006.75
  4. Step 4: Simplify right side
    3,578.66x = 9,910,876.70
  5. Step 5: Solve for x
    x = 9,910,876.70/3,578.66
  6. Step 6: Final answer
    x = 2,769.44

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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.