Home / 5,685.68-8,512.80-2,906.36

Finding the Fourth Proportional to 5,685.68, 8,512.80 and 2,906.36

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Solution

The fourth proportional to 5,685.68, 8,512.80 and 2,906.36 is: 4,351.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,685.68 : 8,512.80 = 2,906.36 : x
  2. Step 2: Convert to fraction form
    5,685.68/8,512.80 = 2,906.36/x
  3. Step 3: Cross multiply
    5,685.68x = 8,512.80 × 2,906.36
  4. Step 4: Simplify right side
    5,685.68x = 24,741,287.75
  5. Step 5: Solve for x
    x = 24,741,287.75/5,685.68
  6. Step 6: Final answer
    x = 4,351.51

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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.