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Finding the Fourth Proportional to 3,579.62, 5,338.91 and 3,517.29

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Solution

The fourth proportional to 3,579.62, 5,338.91 and 3,517.29 is: 5,245.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,579.62 : 5,338.91 = 3,517.29 : x
  2. Step 2: Convert to fraction form
    3,579.62/5,338.91 = 3,517.29/x
  3. Step 3: Cross multiply
    3,579.62x = 5,338.91 × 3,517.29
  4. Step 4: Simplify right side
    3,579.62x = 18,778,477.17
  5. Step 5: Solve for x
    x = 18,778,477.17/3,579.62
  6. Step 6: Final answer
    x = 5,245.95

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.