Home / 3,269.20-4,896.60-1,728.40

Finding the Fourth Proportional to 3,269.20, 4,896.60 and 1,728.40

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Solution

The fourth proportional to 3,269.20, 4,896.60 and 1,728.40 is: 2,588.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,269.20 : 4,896.60 = 1,728.40 : x
  2. Step 2: Convert to fraction form
    3,269.20/4,896.60 = 1,728.40/x
  3. Step 3: Cross multiply
    3,269.20x = 4,896.60 × 1,728.40
  4. Step 4: Simplify right side
    3,269.20x = 8,463,283.44
  5. Step 5: Solve for x
    x = 8,463,283.44/3,269.20
  6. Step 6: Final answer
    x = 2,588.79

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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.