Home / 3,982.83-5,480.24-3,881.07

Finding the Fourth Proportional to 3,982.83, 5,480.24 and 3,881.07

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Solution

The fourth proportional to 3,982.83, 5,480.24 and 3,881.07 is: 5,340.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,982.83 : 5,480.24 = 3,881.07 : x
  2. Step 2: Convert to fraction form
    3,982.83/5,480.24 = 3,881.07/x
  3. Step 3: Cross multiply
    3,982.83x = 5,480.24 × 3,881.07
  4. Step 4: Simplify right side
    3,982.83x = 21,269,175.65
  5. Step 5: Solve for x
    x = 21,269,175.65/3,982.83
  6. Step 6: Final answer
    x = 5,340.22

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.