Home / 2,704.05-4,056.09-756.21

Finding the Fourth Proportional to 2,704.05, 4,056.09 and 756.21

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Solution

The fourth proportional to 2,704.05, 4,056.09 and 756.21 is: 1,134.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,704.05 : 4,056.09 = 756.21 : x
  2. Step 2: Convert to fraction form
    2,704.05/4,056.09 = 756.21/x
  3. Step 3: Cross multiply
    2,704.05x = 4,056.09 × 756.21
  4. Step 4: Simplify right side
    2,704.05x = 3,067,255.82
  5. Step 5: Solve for x
    x = 3,067,255.82/2,704.05
  6. Step 6: Final answer
    x = 1,134.32

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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.