Home / 2,884.36-3,979.38-2,605

Finding the Fourth Proportional to 2,884.36, 3,979.38 and 2,605

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Solution

The fourth proportional to 2,884.36, 3,979.38 and 2,605 is: 3,593.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,884.36 : 3,979.38 = 2,605 : x
  2. Step 2: Convert to fraction form
    2,884.36/3,979.38 = 2,605/x
  3. Step 3: Cross multiply
    2,884.36x = 3,979.38 × 2,605
  4. Step 4: Simplify right side
    2,884.36x = 10,366,284.90
  5. Step 5: Solve for x
    x = 10,366,284.90/2,884.36
  6. Step 6: Final answer
    x = 3,593.96

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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.