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Finding the Fourth Proportional to 3,517.88, 5,276.79 and 1,960.22

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Solution

The fourth proportional to 3,517.88, 5,276.79 and 1,960.22 is: 2,940.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,517.88 : 5,276.79 = 1,960.22 : x
  2. Step 2: Convert to fraction form
    3,517.88/5,276.79 = 1,960.22/x
  3. Step 3: Cross multiply
    3,517.88x = 5,276.79 × 1,960.22
  4. Step 4: Simplify right side
    3,517.88x = 10,343,669.29
  5. Step 5: Solve for x
    x = 10,343,669.29/3,517.88
  6. Step 6: Final answer
    x = 2,940.31

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1.5x scale

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.