Home / 3,979.35-5,493.99-2,563.74

Finding the Fourth Proportional to 3,979.35, 5,493.99 and 2,563.74

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Solution

The fourth proportional to 3,979.35, 5,493.99 and 2,563.74 is: 3,539.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,979.35 : 5,493.99 = 2,563.74 : x
  2. Step 2: Convert to fraction form
    3,979.35/5,493.99 = 2,563.74/x
  3. Step 3: Cross multiply
    3,979.35x = 5,493.99 × 2,563.74
  4. Step 4: Simplify right side
    3,979.35x = 14,085,141.78
  5. Step 5: Solve for x
    x = 14,085,141.78/3,979.35
  6. Step 6: Final answer
    x = 3,539.56

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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.