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Finding the Fourth Proportional to 7,183.98, 10,765.42 and 3,621.22

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Solution

The fourth proportional to 7,183.98, 10,765.42 and 3,621.22 is: 5,426.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,183.98 : 10,765.42 = 3,621.22 : x
  2. Step 2: Convert to fraction form
    7,183.98/10,765.42 = 3,621.22/x
  3. Step 3: Cross multiply
    7,183.98x = 10,765.42 × 3,621.22
  4. Step 4: Simplify right side
    7,183.98x = 38,983,954.21
  5. Step 5: Solve for x
    x = 38,983,954.21/7,183.98
  6. Step 6: Final answer
    x = 5,426.51

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1.5x scale

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.