Home / 2,515.84-3,771.79-1,198.91

Finding the Fourth Proportional to 2,515.84, 3,771.79 and 1,198.91

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Solution

The fourth proportional to 2,515.84, 3,771.79 and 1,198.91 is: 1,797.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,515.84 : 3,771.79 = 1,198.91 : x
  2. Step 2: Convert to fraction form
    2,515.84/3,771.79 = 1,198.91/x
  3. Step 3: Cross multiply
    2,515.84x = 3,771.79 × 1,198.91
  4. Step 4: Simplify right side
    2,515.84x = 4,522,036.75
  5. Step 5: Solve for x
    x = 4,522,036.75/2,515.84
  6. Step 6: Final answer
    x = 1,797.43

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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.