Home / 3,851.62-5,777.58-2,207.42

Finding the Fourth Proportional to 3,851.62, 5,777.58 and 2,207.42

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Solution

The fourth proportional to 3,851.62, 5,777.58 and 2,207.42 is: 3,311.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,851.62 : 5,777.58 = 2,207.42 : x
  2. Step 2: Convert to fraction form
    3,851.62/5,777.58 = 2,207.42/x
  3. Step 3: Cross multiply
    3,851.62x = 5,777.58 × 2,207.42
  4. Step 4: Simplify right side
    3,851.62x = 12,753,545.64
  5. Step 5: Solve for x
    x = 12,753,545.64/3,851.62
  6. Step 6: Final answer
    x = 3,311.22

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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.