Home / 4,261.07-5,879.85-3,142.61

Finding the Fourth Proportional to 4,261.07, 5,879.85 and 3,142.61

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Solution

The fourth proportional to 4,261.07, 5,879.85 and 3,142.61 is: 4,336.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,261.07 : 5,879.85 = 3,142.61 : x
  2. Step 2: Convert to fraction form
    4,261.07/5,879.85 = 3,142.61/x
  3. Step 3: Cross multiply
    4,261.07x = 5,879.85 × 3,142.61
  4. Step 4: Simplify right side
    4,261.07x = 18,478,046.01
  5. Step 5: Solve for x
    x = 18,478,046.01/4,261.07
  6. Step 6: Final answer
    x = 4,336.49

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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.