Home / 2,764.91-4,146.15-1,121.02

Finding the Fourth Proportional to 2,764.91, 4,146.15 and 1,121.02

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Solution

The fourth proportional to 2,764.91, 4,146.15 and 1,121.02 is: 1,681.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,764.91 : 4,146.15 = 1,121.02 : x
  2. Step 2: Convert to fraction form
    2,764.91/4,146.15 = 1,121.02/x
  3. Step 3: Cross multiply
    2,764.91x = 4,146.15 × 1,121.02
  4. Step 4: Simplify right side
    2,764.91x = 4,647,917.07
  5. Step 5: Solve for x
    x = 4,647,917.07/2,764.91
  6. Step 6: Final answer
    x = 1,681.04

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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.