Home / 2,696.20-3,720.70-1,517.24

Finding the Fourth Proportional to 2,696.20, 3,720.70 and 1,517.24

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Solution

The fourth proportional to 2,696.20, 3,720.70 and 1,517.24 is: 2,093.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,696.20 : 3,720.70 = 1,517.24 : x
  2. Step 2: Convert to fraction form
    2,696.20/3,720.70 = 1,517.24/x
  3. Step 3: Cross multiply
    2,696.20x = 3,720.70 × 1,517.24
  4. Step 4: Simplify right side
    2,696.20x = 5,645,194.87
  5. Step 5: Solve for x
    x = 5,645,194.87/2,696.20
  6. Step 6: Final answer
    x = 2,093.76

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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.