Home / 3,979.13-5,967.87-1,513.09

Finding the Fourth Proportional to 3,979.13, 5,967.87 and 1,513.09

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Solution

The fourth proportional to 3,979.13, 5,967.87 and 1,513.09 is: 2,269.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,979.13 : 5,967.87 = 1,513.09 : x
  2. Step 2: Convert to fraction form
    3,979.13/5,967.87 = 1,513.09/x
  3. Step 3: Cross multiply
    3,979.13x = 5,967.87 × 1,513.09
  4. Step 4: Simplify right side
    3,979.13x = 9,029,924.42
  5. Step 5: Solve for x
    x = 9,029,924.42/3,979.13
  6. Step 6: Final answer
    x = 2,269.32

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.