Home / 3,118.48-4,305.09-2,408.73

Finding the Fourth Proportional to 3,118.48, 4,305.09 and 2,408.73

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Solution

The fourth proportional to 3,118.48, 4,305.09 and 2,408.73 is: 3,325.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,118.48 : 4,305.09 = 2,408.73 : x
  2. Step 2: Convert to fraction form
    3,118.48/4,305.09 = 2,408.73/x
  3. Step 3: Cross multiply
    3,118.48x = 4,305.09 × 2,408.73
  4. Step 4: Simplify right side
    3,118.48x = 10,369,799.44
  5. Step 5: Solve for x
    x = 10,369,799.44/3,118.48
  6. Step 6: Final answer
    x = 3,325.28

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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.