Home / 2,191.96-3,286.20-1,095.76

Finding the Fourth Proportional to 2,191.96, 3,286.20 and 1,095.76

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Solution

The fourth proportional to 2,191.96, 3,286.20 and 1,095.76 is: 1,642.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,191.96 : 3,286.20 = 1,095.76 : x
  2. Step 2: Convert to fraction form
    2,191.96/3,286.20 = 1,095.76/x
  3. Step 3: Cross multiply
    2,191.96x = 3,286.20 × 1,095.76
  4. Step 4: Simplify right side
    2,191.96x = 3,600,886.51
  5. Step 5: Solve for x
    x = 3,600,886.51/2,191.96
  6. Step 6: Final answer
    x = 1,642.77

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Half scale
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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.