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Finding the Fourth Proportional to 3,230.92, 4,845.42 and 922.60

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Solution

The fourth proportional to 3,230.92, 4,845.42 and 922.60 is: 1,383.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,230.92 : 4,845.42 = 922.60 : x
  2. Step 2: Convert to fraction form
    3,230.92/4,845.42 = 922.60/x
  3. Step 3: Cross multiply
    3,230.92x = 4,845.42 × 922.60
  4. Step 4: Simplify right side
    3,230.92x = 4,470,384.49
  5. Step 5: Solve for x
    x = 4,470,384.49/3,230.92
  6. Step 6: Final answer
    x = 1,383.63

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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.