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Finding the Fourth Proportional to 2,183.13, 3,274.59 and 539.67

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Solution

The fourth proportional to 2,183.13, 3,274.59 and 539.67 is: 809.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,183.13 : 3,274.59 = 539.67 : x
  2. Step 2: Convert to fraction form
    2,183.13/3,274.59 = 539.67/x
  3. Step 3: Cross multiply
    2,183.13x = 3,274.59 × 539.67
  4. Step 4: Simplify right side
    2,183.13x = 1,767,197.99
  5. Step 5: Solve for x
    x = 1,767,197.99/2,183.13
  6. Step 6: Final answer
    x = 809.48

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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.