Home / 3,983.72-5,977.40-1,519.09

Finding the Fourth Proportional to 3,983.72, 5,977.40 and 1,519.09

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Solution

The fourth proportional to 3,983.72, 5,977.40 and 1,519.09 is: 2,279.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,983.72 : 5,977.40 = 1,519.09 : x
  2. Step 2: Convert to fraction form
    3,983.72/5,977.40 = 1,519.09/x
  3. Step 3: Cross multiply
    3,983.72x = 5,977.40 × 1,519.09
  4. Step 4: Simplify right side
    3,983.72x = 9,080,186.03
  5. Step 5: Solve for x
    x = 9,080,186.03/3,983.72
  6. Step 6: Final answer
    x = 2,279.33

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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.