Home / 3,971.14-5,480.13-2,202.76

Finding the Fourth Proportional to 3,971.14, 5,480.13 and 2,202.76

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Solution

The fourth proportional to 3,971.14, 5,480.13 and 2,202.76 is: 3,039.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,971.14 : 5,480.13 = 2,202.76 : x
  2. Step 2: Convert to fraction form
    3,971.14/5,480.13 = 2,202.76/x
  3. Step 3: Cross multiply
    3,971.14x = 5,480.13 × 2,202.76
  4. Step 4: Simplify right side
    3,971.14x = 12,071,383.76
  5. Step 5: Solve for x
    x = 12,071,383.76/3,971.14
  6. Step 6: Final answer
    x = 3,039.78

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Half scale
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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.