Home / 3,809.76-5,714.18-2,166.18

Finding the Fourth Proportional to 3,809.76, 5,714.18 and 2,166.18

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Solution

The fourth proportional to 3,809.76, 5,714.18 and 2,166.18 is: 3,249.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,809.76 : 5,714.18 = 2,166.18 : x
  2. Step 2: Convert to fraction form
    3,809.76/5,714.18 = 2,166.18/x
  3. Step 3: Cross multiply
    3,809.76x = 5,714.18 × 2,166.18
  4. Step 4: Simplify right side
    3,809.76x = 12,377,942.43
  5. Step 5: Solve for x
    x = 12,377,942.43/3,809.76
  6. Step 6: Final answer
    x = 3,249.01

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Double scale
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Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.