Home / 3,753.81-5,180.57-2,182.21

Finding the Fourth Proportional to 3,753.81, 5,180.57 and 2,182.21

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Solution

The fourth proportional to 3,753.81, 5,180.57 and 2,182.21 is: 3,011.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,753.81 : 5,180.57 = 2,182.21 : x
  2. Step 2: Convert to fraction form
    3,753.81/5,180.57 = 2,182.21/x
  3. Step 3: Cross multiply
    3,753.81x = 5,180.57 × 2,182.21
  4. Step 4: Simplify right side
    3,753.81x = 11,305,091.66
  5. Step 5: Solve for x
    x = 11,305,091.66/3,753.81
  6. Step 6: Final answer
    x = 3,011.63

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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.