Home / 4,002.78-5,995.81-3,218.54

Finding the Fourth Proportional to 4,002.78, 5,995.81 and 3,218.54

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Solution

The fourth proportional to 4,002.78, 5,995.81 and 3,218.54 is: 4,821.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,002.78 : 5,995.81 = 3,218.54 : x
  2. Step 2: Convert to fraction form
    4,002.78/5,995.81 = 3,218.54/x
  3. Step 3: Cross multiply
    4,002.78x = 5,995.81 × 3,218.54
  4. Step 4: Simplify right side
    4,002.78x = 19,297,760.85
  5. Step 5: Solve for x
    x = 19,297,760.85/4,002.78
  6. Step 6: Final answer
    x = 4,821.09

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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.