Home / 3,846.79-5,308.57-2,168.61

Finding the Fourth Proportional to 3,846.79, 5,308.57 and 2,168.61

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Solution

The fourth proportional to 3,846.79, 5,308.57 and 2,168.61 is: 2,992.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,846.79 : 5,308.57 = 2,168.61 : x
  2. Step 2: Convert to fraction form
    3,846.79/5,308.57 = 2,168.61/x
  3. Step 3: Cross multiply
    3,846.79x = 5,308.57 × 2,168.61
  4. Step 4: Simplify right side
    3,846.79x = 11,512,217.99
  5. Step 5: Solve for x
    x = 11,512,217.99/3,846.79
  6. Step 6: Final answer
    x = 2,992.68

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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.