Home / 2,578.27-3,867.33-630.43

Finding the Fourth Proportional to 2,578.27, 3,867.33 and 630.43

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Solution

The fourth proportional to 2,578.27, 3,867.33 and 630.43 is: 945.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,578.27 : 3,867.33 = 630.43 : x
  2. Step 2: Convert to fraction form
    2,578.27/3,867.33 = 630.43/x
  3. Step 3: Cross multiply
    2,578.27x = 3,867.33 × 630.43
  4. Step 4: Simplify right side
    2,578.27x = 2,438,080.85
  5. Step 5: Solve for x
    x = 2,438,080.85/2,578.27
  6. Step 6: Final answer
    x = 945.63

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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.