Home / 3,230-4,836.78-2,256.78

Finding the Fourth Proportional to 3,230, 4,836.78 and 2,256.78

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Solution

The fourth proportional to 3,230, 4,836.78 and 2,256.78 is: 3,379.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,230 : 4,836.78 = 2,256.78 : x
  2. Step 2: Convert to fraction form
    3,230/4,836.78 = 2,256.78/x
  3. Step 3: Cross multiply
    3,230x = 4,836.78 × 2,256.78
  4. Step 4: Simplify right side
    3,230x = 10,915,548.37
  5. Step 5: Solve for x
    x = 10,915,548.37/3,230
  6. Step 6: Final answer
    x = 3,379.43

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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.