Home / 3,276.32-4,913.92-1,520.80

Finding the Fourth Proportional to 3,276.32, 4,913.92 and 1,520.80

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Solution

The fourth proportional to 3,276.32, 4,913.92 and 1,520.80 is: 2,280.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,276.32 : 4,913.92 = 1,520.80 : x
  2. Step 2: Convert to fraction form
    3,276.32/4,913.92 = 1,520.80/x
  3. Step 3: Cross multiply
    3,276.32x = 4,913.92 × 1,520.80
  4. Step 4: Simplify right side
    3,276.32x = 7,473,089.54
  5. Step 5: Solve for x
    x = 7,473,089.54/3,276.32
  6. Step 6: Final answer
    x = 2,280.94

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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.