Home / 3,816.62-5,716.82-2,172.32

Finding the Fourth Proportional to 3,816.62, 5,716.82 and 2,172.32

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Solution

The fourth proportional to 3,816.62, 5,716.82 and 2,172.32 is: 3,253.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,816.62 : 5,716.82 = 2,172.32 : x
  2. Step 2: Convert to fraction form
    3,816.62/5,716.82 = 2,172.32/x
  3. Step 3: Cross multiply
    3,816.62x = 5,716.82 × 2,172.32
  4. Step 4: Simplify right side
    3,816.62x = 12,418,762.42
  5. Step 5: Solve for x
    x = 12,418,762.42/3,816.62
  6. Step 6: Final answer
    x = 3,253.86

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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.