Home / 5,438.26-8,156.17-2,662.15

Finding the Fourth Proportional to 5,438.26, 8,156.17 and 2,662.15

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Solution

The fourth proportional to 5,438.26, 8,156.17 and 2,662.15 is: 3,992.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,438.26 : 8,156.17 = 2,662.15 : x
  2. Step 2: Convert to fraction form
    5,438.26/8,156.17 = 2,662.15/x
  3. Step 3: Cross multiply
    5,438.26x = 8,156.17 × 2,662.15
  4. Step 4: Simplify right side
    5,438.26x = 21,712,947.97
  5. Step 5: Solve for x
    x = 21,712,947.97/5,438.26
  6. Step 6: Final answer
    x = 3,992.63

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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.