Home / 2,634.06-3,951.09-686.22

Finding the Fourth Proportional to 2,634.06, 3,951.09 and 686.22

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Solution

The fourth proportional to 2,634.06, 3,951.09 and 686.22 is: 1,029.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,634.06 : 3,951.09 = 686.22 : x
  2. Step 2: Convert to fraction form
    2,634.06/3,951.09 = 686.22/x
  3. Step 3: Cross multiply
    2,634.06x = 3,951.09 × 686.22
  4. Step 4: Simplify right side
    2,634.06x = 2,711,316.98
  5. Step 5: Solve for x
    x = 2,711,316.98/2,634.06
  6. Step 6: Final answer
    x = 1,029.33

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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.