Home / 3,921.16-5,408.88-2,677

Finding the Fourth Proportional to 3,921.16, 5,408.88 and 2,677

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Solution

The fourth proportional to 3,921.16, 5,408.88 and 2,677 is: 3,692.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,921.16 : 5,408.88 = 2,677 : x
  2. Step 2: Convert to fraction form
    3,921.16/5,408.88 = 2,677/x
  3. Step 3: Cross multiply
    3,921.16x = 5,408.88 × 2,677
  4. Step 4: Simplify right side
    3,921.16x = 14,479,571.76
  5. Step 5: Solve for x
    x = 14,479,571.76/3,921.16
  6. Step 6: Final answer
    x = 3,692.68

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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.