Home / 3,647.24-5,031.94-2,231.58

Finding the Fourth Proportional to 3,647.24, 5,031.94 and 2,231.58

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Solution

The fourth proportional to 3,647.24, 5,031.94 and 2,231.58 is: 3,078.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,647.24 : 5,031.94 = 2,231.58 : x
  2. Step 2: Convert to fraction form
    3,647.24/5,031.94 = 2,231.58/x
  3. Step 3: Cross multiply
    3,647.24x = 5,031.94 × 2,231.58
  4. Step 4: Simplify right side
    3,647.24x = 11,229,176.67
  5. Step 5: Solve for x
    x = 11,229,176.67/3,647.24
  6. Step 6: Final answer
    x = 3,078.81

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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.