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Finding the Fourth Proportional to 3,230.96, 4,846.68 and 922.64

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Solution

The fourth proportional to 3,230.96, 4,846.68 and 922.64 is: 1,384.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,230.96 : 4,846.68 = 922.64 : x
  2. Step 2: Convert to fraction form
    3,230.96/4,846.68 = 922.64/x
  3. Step 3: Cross multiply
    3,230.96x = 4,846.68 × 922.64
  4. Step 4: Simplify right side
    3,230.96x = 4,471,740.84
  5. Step 5: Solve for x
    x = 4,471,740.84/3,230.96
  6. Step 6: Final answer
    x = 1,384.03

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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.