Home / 4,142.82-5,717.37-2,279.94

Finding the Fourth Proportional to 4,142.82, 5,717.37 and 2,279.94

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Solution

The fourth proportional to 4,142.82, 5,717.37 and 2,279.94 is: 3,146.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,142.82 : 5,717.37 = 2,279.94 : x
  2. Step 2: Convert to fraction form
    4,142.82/5,717.37 = 2,279.94/x
  3. Step 3: Cross multiply
    4,142.82x = 5,717.37 × 2,279.94
  4. Step 4: Simplify right side
    4,142.82x = 13,035,260.56
  5. Step 5: Solve for x
    x = 13,035,260.56/4,142.82
  6. Step 6: Final answer
    x = 3,146.47

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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.