Home / 2,578.61-3,867.88-630.83

Finding the Fourth Proportional to 2,578.61, 3,867.88 and 630.83

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Solution

The fourth proportional to 2,578.61, 3,867.88 and 630.83 is: 946.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,578.61 : 3,867.88 = 630.83 : x
  2. Step 2: Convert to fraction form
    2,578.61/3,867.88 = 630.83/x
  3. Step 3: Cross multiply
    2,578.61x = 3,867.88 × 630.83
  4. Step 4: Simplify right side
    2,578.61x = 2,439,974.74
  5. Step 5: Solve for x
    x = 2,439,974.74/2,578.61
  6. Step 6: Final answer
    x = 946.24

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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.