Home / 5,145.03-7,720.50-2,183.24

Finding the Fourth Proportional to 5,145.03, 7,720.50 and 2,183.24

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Solution

The fourth proportional to 5,145.03, 7,720.50 and 2,183.24 is: 3,276.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,145.03 : 7,720.50 = 2,183.24 : x
  2. Step 2: Convert to fraction form
    5,145.03/7,720.50 = 2,183.24/x
  3. Step 3: Cross multiply
    5,145.03x = 7,720.50 × 2,183.24
  4. Step 4: Simplify right side
    5,145.03x = 16,855,731.91
  5. Step 5: Solve for x
    x = 16,855,731.91/5,145.03
  6. Step 6: Final answer
    x = 3,276.12

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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.