Home / 3,763.09-5,640.57-2,119.21

Finding the Fourth Proportional to 3,763.09, 5,640.57 and 2,119.21

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Solution

The fourth proportional to 3,763.09, 5,640.57 and 2,119.21 is: 3,176.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,763.09 : 5,640.57 = 2,119.21 : x
  2. Step 2: Convert to fraction form
    3,763.09/5,640.57 = 2,119.21/x
  3. Step 3: Cross multiply
    3,763.09x = 5,640.57 × 2,119.21
  4. Step 4: Simplify right side
    3,763.09x = 11,953,552.35
  5. Step 5: Solve for x
    x = 11,953,552.35/3,763.09
  6. Step 6: Final answer
    x = 3,176.53

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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.