Home / 3,759.90-5,640.06-2,117.82

Finding the Fourth Proportional to 3,759.90, 5,640.06 and 2,117.82

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Solution

The fourth proportional to 3,759.90, 5,640.06 and 2,117.82 is: 3,176.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,759.90 : 5,640.06 = 2,117.82 : x
  2. Step 2: Convert to fraction form
    3,759.90/5,640.06 = 2,117.82/x
  3. Step 3: Cross multiply
    3,759.90x = 5,640.06 × 2,117.82
  4. Step 4: Simplify right side
    3,759.90x = 11,944,631.87
  5. Step 5: Solve for x
    x = 11,944,631.87/3,759.90
  6. Step 6: Final answer
    x = 3,176.85

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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.