Home / 3,040.60-4,560.90-1,191.10

Finding the Fourth Proportional to 3,040.60, 4,560.90 and 1,191.10

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Solution

The fourth proportional to 3,040.60, 4,560.90 and 1,191.10 is: 1,786.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,040.60 : 4,560.90 = 1,191.10 : x
  2. Step 2: Convert to fraction form
    3,040.60/4,560.90 = 1,191.10/x
  3. Step 3: Cross multiply
    3,040.60x = 4,560.90 × 1,191.10
  4. Step 4: Simplify right side
    3,040.60x = 5,432,487.99
  5. Step 5: Solve for x
    x = 5,432,487.99/3,040.60
  6. Step 6: Final answer
    x = 1,786.65

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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.