Home / 5,145.48-7,716.68-2,183.87

Finding the Fourth Proportional to 5,145.48, 7,716.68 and 2,183.87

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Solution

The fourth proportional to 5,145.48, 7,716.68 and 2,183.87 is: 3,275.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,145.48 : 7,716.68 = 2,183.87 : x
  2. Step 2: Convert to fraction form
    5,145.48/7,716.68 = 2,183.87/x
  3. Step 3: Cross multiply
    5,145.48x = 7,716.68 × 2,183.87
  4. Step 4: Simplify right side
    5,145.48x = 16,852,254.80
  5. Step 5: Solve for x
    x = 16,852,254.80/5,145.48
  6. Step 6: Final answer
    x = 3,275.16

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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.