Home / 2,704.20-4,055.90-756.60

Finding the Fourth Proportional to 2,704.20, 4,055.90 and 756.60

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Solution

The fourth proportional to 2,704.20, 4,055.90 and 756.60 is: 1,134.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,704.20 : 4,055.90 = 756.60 : x
  2. Step 2: Convert to fraction form
    2,704.20/4,055.90 = 756.60/x
  3. Step 3: Cross multiply
    2,704.20x = 4,055.90 × 756.60
  4. Step 4: Simplify right side
    2,704.20x = 3,068,693.94
  5. Step 5: Solve for x
    x = 3,068,693.94/2,704.20
  6. Step 6: Final answer
    x = 1,134.79

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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.