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Finding the Fourth Proportional to 3,192.88, 4,408.80 and 3,029.80

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Solution

The fourth proportional to 3,192.88, 4,408.80 and 3,029.80 is: 4,183.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,192.88 : 4,408.80 = 3,029.80 : x
  2. Step 2: Convert to fraction form
    3,192.88/4,408.80 = 3,029.80/x
  3. Step 3: Cross multiply
    3,192.88x = 4,408.80 × 3,029.80
  4. Step 4: Simplify right side
    3,192.88x = 13,357,782.24
  5. Step 5: Solve for x
    x = 13,357,782.24/3,192.88
  6. Step 6: Final answer
    x = 4,183.62

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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.