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Finding the Fourth Proportional to 5,474.88, 8,215.02 and 3,394.32

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Solution

The fourth proportional to 5,474.88, 8,215.02 and 3,394.32 is: 5,093.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,474.88 : 8,215.02 = 3,394.32 : x
  2. Step 2: Convert to fraction form
    5,474.88/8,215.02 = 3,394.32/x
  3. Step 3: Cross multiply
    5,474.88x = 8,215.02 × 3,394.32
  4. Step 4: Simplify right side
    5,474.88x = 27,884,406.69
  5. Step 5: Solve for x
    x = 27,884,406.69/5,474.88
  6. Step 6: Final answer
    x = 5,093.15

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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.