Home / 2,625.75-3,939.27-801.75

Finding the Fourth Proportional to 2,625.75, 3,939.27 and 801.75

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Solution

The fourth proportional to 2,625.75, 3,939.27 and 801.75 is: 1,202.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,625.75 : 3,939.27 = 801.75 : x
  2. Step 2: Convert to fraction form
    2,625.75/3,939.27 = 801.75/x
  3. Step 3: Cross multiply
    2,625.75x = 3,939.27 × 801.75
  4. Step 4: Simplify right side
    2,625.75x = 3,158,309.72
  5. Step 5: Solve for x
    x = 3,158,309.72/2,625.75
  6. Step 6: Final answer
    x = 1,202.82

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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.