Home / 3,958.95-5,461.76-2,279.46

Finding the Fourth Proportional to 3,958.95, 5,461.76 and 2,279.46

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Solution

The fourth proportional to 3,958.95, 5,461.76 and 2,279.46 is: 3,144.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,958.95 : 5,461.76 = 2,279.46 : x
  2. Step 2: Convert to fraction form
    3,958.95/5,461.76 = 2,279.46/x
  3. Step 3: Cross multiply
    3,958.95x = 5,461.76 × 2,279.46
  4. Step 4: Simplify right side
    3,958.95x = 12,449,836.14
  5. Step 5: Solve for x
    x = 12,449,836.14/3,958.95
  6. Step 6: Final answer
    x = 3,144.73

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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.