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Finding the Fourth Proportional to 5,871.98, 8,103.26 and 3,219.39

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Solution

The fourth proportional to 5,871.98, 8,103.26 and 3,219.39 is: 4,442.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,871.98 : 8,103.26 = 3,219.39 : x
  2. Step 2: Convert to fraction form
    5,871.98/8,103.26 = 3,219.39/x
  3. Step 3: Cross multiply
    5,871.98x = 8,103.26 × 3,219.39
  4. Step 4: Simplify right side
    5,871.98x = 26,087,554.21
  5. Step 5: Solve for x
    x = 26,087,554.21/5,871.98
  6. Step 6: Final answer
    x = 4,442.72

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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.