Home / 3,801.11-5,244.89-2,122.45

Finding the Fourth Proportional to 3,801.11, 5,244.89 and 2,122.45

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Solution

The fourth proportional to 3,801.11, 5,244.89 and 2,122.45 is: 2,928.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,801.11 : 5,244.89 = 2,122.45 : x
  2. Step 2: Convert to fraction form
    3,801.11/5,244.89 = 2,122.45/x
  3. Step 3: Cross multiply
    3,801.11x = 5,244.89 × 2,122.45
  4. Step 4: Simplify right side
    3,801.11x = 11,131,993.06
  5. Step 5: Solve for x
    x = 11,131,993.06/3,801.11
  6. Step 6: Final answer
    x = 2,928.62

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Double scale
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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.