Home / 2,508.45-3,763.14-1,121.84

Finding the Fourth Proportional to 2,508.45, 3,763.14 and 1,121.84

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Solution

The fourth proportional to 2,508.45, 3,763.14 and 1,121.84 is: 1,682.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,508.45 : 3,763.14 = 1,121.84 : x
  2. Step 2: Convert to fraction form
    2,508.45/3,763.14 = 1,121.84/x
  3. Step 3: Cross multiply
    2,508.45x = 3,763.14 × 1,121.84
  4. Step 4: Simplify right side
    2,508.45x = 4,221,640.98
  5. Step 5: Solve for x
    x = 4,221,640.98/2,508.45
  6. Step 6: Final answer
    x = 1,682.97

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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.