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Finding the Fourth Proportional to 3,230.67, 4,821.03 and 2,881.20

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Solution

The fourth proportional to 3,230.67, 4,821.03 and 2,881.20 is: 4,299.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,230.67 : 4,821.03 = 2,881.20 : x
  2. Step 2: Convert to fraction form
    3,230.67/4,821.03 = 2,881.20/x
  3. Step 3: Cross multiply
    3,230.67x = 4,821.03 × 2,881.20
  4. Step 4: Simplify right side
    3,230.67x = 13,890,351.64
  5. Step 5: Solve for x
    x = 13,890,351.64/3,230.67
  6. Step 6: Final answer
    x = 4,299.53

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.