Home / 4,380.78-6,558.97-3,408.78

Finding the Fourth Proportional to 4,380.78, 6,558.97 and 3,408.78

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Solution

The fourth proportional to 4,380.78, 6,558.97 and 3,408.78 is: 5,103.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,380.78 : 6,558.97 = 3,408.78 : x
  2. Step 2: Convert to fraction form
    4,380.78/6,558.97 = 3,408.78/x
  3. Step 3: Cross multiply
    4,380.78x = 6,558.97 × 3,408.78
  4. Step 4: Simplify right side
    4,380.78x = 22,358,085.76
  5. Step 5: Solve for x
    x = 22,358,085.76/4,380.78
  6. Step 6: Final answer
    x = 5,103.68

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.