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Finding the Fourth Proportional to 4,880.89, 7,321.34 and 1,183.12

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Solution

The fourth proportional to 4,880.89, 7,321.34 and 1,183.12 is: 1,774.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,880.89 : 7,321.34 = 1,183.12 : x
  2. Step 2: Convert to fraction form
    4,880.89/7,321.34 = 1,183.12/x
  3. Step 3: Cross multiply
    4,880.89x = 7,321.34 × 1,183.12
  4. Step 4: Simplify right side
    4,880.89x = 8,662,023.78
  5. Step 5: Solve for x
    x = 8,662,023.78/4,880.89
  6. Step 6: Final answer
    x = 1,774.68

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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.