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Finding the Fourth Proportional to 5,920.98, 8,170.90 and 3,268.39

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Solution

The fourth proportional to 5,920.98, 8,170.90 and 3,268.39 is: 4,510.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,920.98 : 8,170.90 = 3,268.39 : x
  2. Step 2: Convert to fraction form
    5,920.98/8,170.90 = 3,268.39/x
  3. Step 3: Cross multiply
    5,920.98x = 8,170.90 × 3,268.39
  4. Step 4: Simplify right side
    5,920.98x = 26,705,687.85
  5. Step 5: Solve for x
    x = 26,705,687.85/5,920.98
  6. Step 6: Final answer
    x = 4,510.35

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.