Home / 2,175.25-3,262.87-531.79

Finding the Fourth Proportional to 2,175.25, 3,262.87 and 531.79

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Solution

The fourth proportional to 2,175.25, 3,262.87 and 531.79 is: 797.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,175.25 : 3,262.87 = 531.79 : x
  2. Step 2: Convert to fraction form
    2,175.25/3,262.87 = 531.79/x
  3. Step 3: Cross multiply
    2,175.25x = 3,262.87 × 531.79
  4. Step 4: Simplify right side
    2,175.25x = 1,735,160.31
  5. Step 5: Solve for x
    x = 1,735,160.31/2,175.25
  6. Step 6: Final answer
    x = 797.69

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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.