Home / 3,958.33-5,461.88-2,279.81

Finding the Fourth Proportional to 3,958.33, 5,461.88 and 2,279.81

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Solution

The fourth proportional to 3,958.33, 5,461.88 and 2,279.81 is: 3,145.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,958.33 : 5,461.88 = 2,279.81 : x
  2. Step 2: Convert to fraction form
    3,958.33/5,461.88 = 2,279.81/x
  3. Step 3: Cross multiply
    3,958.33x = 5,461.88 × 2,279.81
  4. Step 4: Simplify right side
    3,958.33x = 12,452,021.33
  5. Step 5: Solve for x
    x = 12,452,021.33/3,958.33
  6. Step 6: Final answer
    x = 3,145.78

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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.