Home / 3,847.89-5,310.11-2,079.49

Finding the Fourth Proportional to 3,847.89, 5,310.11 and 2,079.49

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Solution

The fourth proportional to 3,847.89, 5,310.11 and 2,079.49 is: 2,869.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,847.89 : 5,310.11 = 2,079.49 : x
  2. Step 2: Convert to fraction form
    3,847.89/5,310.11 = 2,079.49/x
  3. Step 3: Cross multiply
    3,847.89x = 5,310.11 × 2,079.49
  4. Step 4: Simplify right side
    3,847.89x = 11,042,332.48
  5. Step 5: Solve for x
    x = 11,042,332.48/3,847.89
  6. Step 6: Final answer
    x = 2,869.71

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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.