Home / 2,194.60-3,291.90-1,101.10

Finding the Fourth Proportional to 2,194.60, 3,291.90 and 1,101.10

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Solution

The fourth proportional to 2,194.60, 3,291.90 and 1,101.10 is: 1,651.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,194.60 : 3,291.90 = 1,101.10 : x
  2. Step 2: Convert to fraction form
    2,194.60/3,291.90 = 1,101.10/x
  3. Step 3: Cross multiply
    2,194.60x = 3,291.90 × 1,101.10
  4. Step 4: Simplify right side
    2,194.60x = 3,624,711.09
  5. Step 5: Solve for x
    x = 3,624,711.09/2,194.60
  6. Step 6: Final answer
    x = 1,651.65

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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.