Home / 3,195.42-4,408.20-1,868.94

Finding the Fourth Proportional to 3,195.42, 4,408.20 and 1,868.94

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Solution

The fourth proportional to 3,195.42, 4,408.20 and 1,868.94 is: 2,578.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,195.42 : 4,408.20 = 1,868.94 : x
  2. Step 2: Convert to fraction form
    3,195.42/4,408.20 = 1,868.94/x
  3. Step 3: Cross multiply
    3,195.42x = 4,408.20 × 1,868.94
  4. Step 4: Simplify right side
    3,195.42x = 8,238,661.31
  5. Step 5: Solve for x
    x = 8,238,661.31/3,195.42
  6. Step 6: Final answer
    x = 2,578.27

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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.