Home / 7,408.98-11,120.82-3,251.88

Finding the Fourth Proportional to 7,408.98, 11,120.82 and 3,251.88

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Solution

The fourth proportional to 7,408.98, 11,120.82 and 3,251.88 is: 4,881.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,408.98 : 11,120.82 = 3,251.88 : x
  2. Step 2: Convert to fraction form
    7,408.98/11,120.82 = 3,251.88/x
  3. Step 3: Cross multiply
    7,408.98x = 11,120.82 × 3,251.88
  4. Step 4: Simplify right side
    7,408.98x = 36,163,572.14
  5. Step 5: Solve for x
    x = 36,163,572.14/7,408.98
  6. Step 6: Final answer
    x = 4,881.05

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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.