Home / 3,196.80-4,408.32-3,125.28

Finding the Fourth Proportional to 3,196.80, 4,408.32 and 3,125.28

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Solution

The fourth proportional to 3,196.80, 4,408.32 and 3,125.28 is: 4,309.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,196.80 : 4,408.32 = 3,125.28 : x
  2. Step 2: Convert to fraction form
    3,196.80/4,408.32 = 3,125.28/x
  3. Step 3: Cross multiply
    3,196.80x = 4,408.32 × 3,125.28
  4. Step 4: Simplify right side
    3,196.80x = 13,777,234.33
  5. Step 5: Solve for x
    x = 13,777,234.33/3,196.80
  6. Step 6: Final answer
    x = 4,309.70

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1.5x scale

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.