Home / 5,181.12-7,151.06-3,591.14

Finding the Fourth Proportional to 5,181.12, 7,151.06 and 3,591.14

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Solution

The fourth proportional to 5,181.12, 7,151.06 and 3,591.14 is: 4,956.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,181.12 : 7,151.06 = 3,591.14 : x
  2. Step 2: Convert to fraction form
    5,181.12/7,151.06 = 3,591.14/x
  3. Step 3: Cross multiply
    5,181.12x = 7,151.06 × 3,591.14
  4. Step 4: Simplify right side
    5,181.12x = 25,680,403.90
  5. Step 5: Solve for x
    x = 25,680,403.90/5,181.12
  6. Step 6: Final answer
    x = 4,956.54

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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 (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.