Home / 3,621.60-5,429.20-3,232.80

Finding the Fourth Proportional to 3,621.60, 5,429.20 and 3,232.80

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Solution

The fourth proportional to 3,621.60, 5,429.20 and 3,232.80 is: 4,846.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,621.60 : 5,429.20 = 3,232.80 : x
  2. Step 2: Convert to fraction form
    3,621.60/5,429.20 = 3,232.80/x
  3. Step 3: Cross multiply
    3,621.60x = 5,429.20 × 3,232.80
  4. Step 4: Simplify right side
    3,621.60x = 17,551,517.76
  5. Step 5: Solve for x
    x = 17,551,517.76/3,621.60
  6. Step 6: Final answer
    x = 4,846.34

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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.