Home / 2,584.18-3,876.24-636.40

Finding the Fourth Proportional to 2,584.18, 3,876.24 and 636.40

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Solution

The fourth proportional to 2,584.18, 3,876.24 and 636.40 is: 954.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,584.18 : 3,876.24 = 636.40 : x
  2. Step 2: Convert to fraction form
    2,584.18/3,876.24 = 636.40/x
  3. Step 3: Cross multiply
    2,584.18x = 3,876.24 × 636.40
  4. Step 4: Simplify right side
    2,584.18x = 2,466,839.14
  5. Step 5: Solve for x
    x = 2,466,839.14/2,584.18
  6. Step 6: Final answer
    x = 954.59

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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.