Home / 3,621.72-5,433.78-1,772.46

Finding the Fourth Proportional to 3,621.72, 5,433.78 and 1,772.46

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Solution

The fourth proportional to 3,621.72, 5,433.78 and 1,772.46 is: 2,659.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,621.72 : 5,433.78 = 1,772.46 : x
  2. Step 2: Convert to fraction form
    3,621.72/5,433.78 = 1,772.46/x
  3. Step 3: Cross multiply
    3,621.72x = 5,433.78 × 1,772.46
  4. Step 4: Simplify right side
    3,621.72x = 9,631,157.70
  5. Step 5: Solve for x
    x = 9,631,157.70/3,621.72
  6. Step 6: Final answer
    x = 2,659.28

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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.