Home / 2,696.90-3,722.76-2,107.62

Finding the Fourth Proportional to 2,696.90, 3,722.76 and 2,107.62

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Solution

The fourth proportional to 2,696.90, 3,722.76 and 2,107.62 is: 2,909.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,696.90 : 3,722.76 = 2,107.62 : x
  2. Step 2: Convert to fraction form
    2,696.90/3,722.76 = 2,107.62/x
  3. Step 3: Cross multiply
    2,696.90x = 3,722.76 × 2,107.62
  4. Step 4: Simplify right side
    2,696.90x = 7,846,163.43
  5. Step 5: Solve for x
    x = 7,846,163.43/2,696.90
  6. Step 6: Final answer
    x = 2,909.33

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1.5x scale

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.