Home / 7,218.15-10,829.80-3,270.31

Finding the Fourth Proportional to 7,218.15, 10,829.80 and 3,270.31

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Solution

The fourth proportional to 7,218.15, 10,829.80 and 3,270.31 is: 4,906.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,218.15 : 10,829.80 = 3,270.31 : x
  2. Step 2: Convert to fraction form
    7,218.15/10,829.80 = 3,270.31/x
  3. Step 3: Cross multiply
    7,218.15x = 10,829.80 × 3,270.31
  4. Step 4: Simplify right side
    7,218.15x = 35,416,780.25
  5. Step 5: Solve for x
    x = 35,416,780.25/7,218.15
  6. Step 6: Final answer
    x = 4,906.63

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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.