Home / 3,982.69-5,476.44-3,539.80

Finding the Fourth Proportional to 3,982.69, 5,476.44 and 3,539.80

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Solution

The fourth proportional to 3,982.69, 5,476.44 and 3,539.80 is: 4,867.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,982.69 : 5,476.44 = 3,539.80 : x
  2. Step 2: Convert to fraction form
    3,982.69/5,476.44 = 3,539.80/x
  3. Step 3: Cross multiply
    3,982.69x = 5,476.44 × 3,539.80
  4. Step 4: Simplify right side
    3,982.69x = 19,385,502.31
  5. Step 5: Solve for x
    x = 19,385,502.31/3,982.69
  6. Step 6: Final answer
    x = 4,867.44

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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.