Home / 3,285.20-4,920.60-1,744.40

Finding the Fourth Proportional to 3,285.20, 4,920.60 and 1,744.40

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Solution

The fourth proportional to 3,285.20, 4,920.60 and 1,744.40 is: 2,612.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,285.20 : 4,920.60 = 1,744.40 : x
  2. Step 2: Convert to fraction form
    3,285.20/4,920.60 = 1,744.40/x
  3. Step 3: Cross multiply
    3,285.20x = 4,920.60 × 1,744.40
  4. Step 4: Simplify right side
    3,285.20x = 8,583,494.64
  5. Step 5: Solve for x
    x = 8,583,494.64/3,285.20
  6. Step 6: Final answer
    x = 2,612.78

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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.