Home / 4,255.44-6,378.28-2,279.56

Finding the Fourth Proportional to 4,255.44, 6,378.28 and 2,279.56

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Solution

The fourth proportional to 4,255.44, 6,378.28 and 2,279.56 is: 3,416.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,255.44 : 6,378.28 = 2,279.56 : x
  2. Step 2: Convert to fraction form
    4,255.44/6,378.28 = 2,279.56/x
  3. Step 3: Cross multiply
    4,255.44x = 6,378.28 × 2,279.56
  4. Step 4: Simplify right side
    4,255.44x = 14,539,671.96
  5. Step 5: Solve for x
    x = 14,539,671.96/4,255.44
  6. Step 6: Final answer
    x = 3,416.73

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.