Home / 2,116.62-2,920.92-1,265.97

Finding the Fourth Proportional to 2,116.62, 2,920.92 and 1,265.97

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Solution

The fourth proportional to 2,116.62, 2,920.92 and 1,265.97 is: 1,747.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,116.62 : 2,920.92 = 1,265.97 : x
  2. Step 2: Convert to fraction form
    2,116.62/2,920.92 = 1,265.97/x
  3. Step 3: Cross multiply
    2,116.62x = 2,920.92 × 1,265.97
  4. Step 4: Simplify right side
    2,116.62x = 3,697,797.09
  5. Step 5: Solve for x
    x = 3,697,797.09/2,116.62
  6. Step 6: Final answer
    x = 1,747.03

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.