Home / 7,218.25-10,827.67-2,287.78

Finding the Fourth Proportional to 7,218.25, 10,827.67 and 2,287.78

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Solution

The fourth proportional to 7,218.25, 10,827.67 and 2,287.78 is: 3,431.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,218.25 : 10,827.67 = 2,287.78 : x
  2. Step 2: Convert to fraction form
    7,218.25/10,827.67 = 2,287.78/x
  3. Step 3: Cross multiply
    7,218.25x = 10,827.67 × 2,287.78
  4. Step 4: Simplify right side
    7,218.25x = 24,771,326.87
  5. Step 5: Solve for x
    x = 24,771,326.87/7,218.25
  6. Step 6: Final answer
    x = 3,431.76

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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.