Home / 3,195.45-4,408.43-2,309.31

Finding the Fourth Proportional to 3,195.45, 4,408.43 and 2,309.31

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Solution

The fourth proportional to 3,195.45, 4,408.43 and 2,309.31 is: 3,185.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,195.45 : 4,408.43 = 2,309.31 : x
  2. Step 2: Convert to fraction form
    3,195.45/4,408.43 = 2,309.31/x
  3. Step 3: Cross multiply
    3,195.45x = 4,408.43 × 2,309.31
  4. Step 4: Simplify right side
    3,195.45x = 10,180,419.94
  5. Step 5: Solve for x
    x = 10,180,419.94/3,195.45
  6. Step 6: Final answer
    x = 3,185.91

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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.