Home / 2,680.49-4,017.97-1,121.41

Finding the Fourth Proportional to 2,680.49, 4,017.97 and 1,121.41

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Solution

The fourth proportional to 2,680.49, 4,017.97 and 1,121.41 is: 1,680.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,680.49 : 4,017.97 = 1,121.41 : x
  2. Step 2: Convert to fraction form
    2,680.49/4,017.97 = 1,121.41/x
  3. Step 3: Cross multiply
    2,680.49x = 4,017.97 × 1,121.41
  4. Step 4: Simplify right side
    2,680.49x = 4,505,798.16
  5. Step 5: Solve for x
    x = 4,505,798.16/2,680.49
  6. Step 6: Final answer
    x = 1,680.96

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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.