Home / 5,517.47-8,276.20-1,621.88

Finding the Fourth Proportional to 5,517.47, 8,276.20 and 1,621.88

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Solution

The fourth proportional to 5,517.47, 8,276.20 and 1,621.88 is: 2,432.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,517.47 : 8,276.20 = 1,621.88 : x
  2. Step 2: Convert to fraction form
    5,517.47/8,276.20 = 1,621.88/x
  3. Step 3: Cross multiply
    5,517.47x = 8,276.20 × 1,621.88
  4. Step 4: Simplify right side
    5,517.47x = 13,422,961.88
  5. Step 5: Solve for x
    x = 13,422,961.88/5,517.47
  6. Step 6: Final answer
    x = 2,432.81

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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.