Home / 3,438.08-5,147.76-3,213.44

Finding the Fourth Proportional to 3,438.08, 5,147.76 and 3,213.44

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Solution

The fourth proportional to 3,438.08, 5,147.76 and 3,213.44 is: 4,811.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,438.08 : 5,147.76 = 3,213.44 : x
  2. Step 2: Convert to fraction form
    3,438.08/5,147.76 = 3,213.44/x
  3. Step 3: Cross multiply
    3,438.08x = 5,147.76 × 3,213.44
  4. Step 4: Simplify right side
    3,438.08x = 16,542,017.89
  5. Step 5: Solve for x
    x = 16,542,017.89/3,438.08
  6. Step 6: Final answer
    x = 4,811.41

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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.