Home / 4,021.80-5,551.62-3,910.82

Finding the Fourth Proportional to 4,021.80, 5,551.62 and 3,910.82

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Solution

The fourth proportional to 4,021.80, 5,551.62 and 3,910.82 is: 5,398.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,021.80 : 5,551.62 = 3,910.82 : x
  2. Step 2: Convert to fraction form
    4,021.80/5,551.62 = 3,910.82/x
  3. Step 3: Cross multiply
    4,021.80x = 5,551.62 × 3,910.82
  4. Step 4: Simplify right side
    4,021.80x = 21,711,386.53
  5. Step 5: Solve for x
    x = 21,711,386.53/4,021.80
  6. Step 6: Final answer
    x = 5,398.43

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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.