Home / 3,979.29-5,493.90-2,563.68

Finding the Fourth Proportional to 3,979.29, 5,493.90 and 2,563.68

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Solution

The fourth proportional to 3,979.29, 5,493.90 and 2,563.68 is: 3,539.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,979.29 : 5,493.90 = 2,563.68 : x
  2. Step 2: Convert to fraction form
    3,979.29/5,493.90 = 2,563.68/x
  3. Step 3: Cross multiply
    3,979.29x = 5,493.90 × 2,563.68
  4. Step 4: Simplify right side
    3,979.29x = 14,084,574.08
  5. Step 5: Solve for x
    x = 14,084,574.08/3,979.29
  6. Step 6: Final answer
    x = 3,539.47

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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.