Home / 3,845.54-5,306.41-2,166.82

Finding the Fourth Proportional to 3,845.54, 5,306.41 and 2,166.82

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Solution

The fourth proportional to 3,845.54, 5,306.41 and 2,166.82 is: 2,989.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,845.54 : 5,306.41 = 2,166.82 : x
  2. Step 2: Convert to fraction form
    3,845.54/5,306.41 = 2,166.82/x
  3. Step 3: Cross multiply
    3,845.54x = 5,306.41 × 2,166.82
  4. Step 4: Simplify right side
    3,845.54x = 11,498,035.32
  5. Step 5: Solve for x
    x = 11,498,035.32/3,845.54
  6. Step 6: Final answer
    x = 2,989.97

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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.