Home / 3,408.53-5,111.20-2,782.96

Finding the Fourth Proportional to 3,408.53, 5,111.20 and 2,782.96

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Solution

The fourth proportional to 3,408.53, 5,111.20 and 2,782.96 is: 4,173.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,408.53 : 5,111.20 = 2,782.96 : x
  2. Step 2: Convert to fraction form
    3,408.53/5,111.20 = 2,782.96/x
  3. Step 3: Cross multiply
    3,408.53x = 5,111.20 × 2,782.96
  4. Step 4: Simplify right side
    3,408.53x = 14,224,255.85
  5. Step 5: Solve for x
    x = 14,224,255.85/3,408.53
  6. Step 6: Final answer
    x = 4,173.13

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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.