Home / 3,768.90-5,649.24-3,219.42

Finding the Fourth Proportional to 3,768.90, 5,649.24 and 3,219.42

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Solution

The fourth proportional to 3,768.90, 5,649.24 and 3,219.42 is: 4,825.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,768.90 : 5,649.24 = 3,219.42 : x
  2. Step 2: Convert to fraction form
    3,768.90/5,649.24 = 3,219.42/x
  3. Step 3: Cross multiply
    3,768.90x = 5,649.24 × 3,219.42
  4. Step 4: Simplify right side
    3,768.90x = 18,187,276.24
  5. Step 5: Solve for x
    x = 18,187,276.24/3,768.90
  6. Step 6: Final answer
    x = 4,825.62

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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.