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Finding the Fourth Proportional to 3,994.76, 5,512.71 and 2,226.26

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Solution

The fourth proportional to 3,994.76, 5,512.71 and 2,226.26 is: 3,072.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,994.76 : 5,512.71 = 2,226.26 : x
  2. Step 2: Convert to fraction form
    3,994.76/5,512.71 = 2,226.26/x
  3. Step 3: Cross multiply
    3,994.76x = 5,512.71 × 2,226.26
  4. Step 4: Simplify right side
    3,994.76x = 12,272,698.20
  5. Step 5: Solve for x
    x = 12,272,698.20/3,994.76
  6. Step 6: Final answer
    x = 3,072.20

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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.