Home / 3,823.78-5,728.27-2,238.66

Finding the Fourth Proportional to 3,823.78, 5,728.27 and 2,238.66

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Solution

The fourth proportional to 3,823.78, 5,728.27 and 2,238.66 is: 3,353.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,823.78 : 5,728.27 = 2,238.66 : x
  2. Step 2: Convert to fraction form
    3,823.78/5,728.27 = 2,238.66/x
  3. Step 3: Cross multiply
    3,823.78x = 5,728.27 × 2,238.66
  4. Step 4: Simplify right side
    3,823.78x = 12,823,647.52
  5. Step 5: Solve for x
    x = 12,823,647.52/3,823.78
  6. Step 6: Final answer
    x = 3,353.66

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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.