Home / 2,027.45-3,039.26-639.83

Finding the Fourth Proportional to 2,027.45, 3,039.26 and 639.83

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Solution

The fourth proportional to 2,027.45, 3,039.26 and 639.83 is: 959.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,027.45 : 3,039.26 = 639.83 : x
  2. Step 2: Convert to fraction form
    2,027.45/3,039.26 = 639.83/x
  3. Step 3: Cross multiply
    2,027.45x = 3,039.26 × 639.83
  4. Step 4: Simplify right side
    2,027.45x = 1,944,614.12
  5. Step 5: Solve for x
    x = 1,944,614.12/2,027.45
  6. Step 6: Final answer
    x = 959.14

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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.