Home / 3,951.45-5,446.44-2,770.47

Finding the Fourth Proportional to 3,951.45, 5,446.44 and 2,770.47

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Solution

The fourth proportional to 3,951.45, 5,446.44 and 2,770.47 is: 3,818.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,951.45 : 5,446.44 = 2,770.47 : x
  2. Step 2: Convert to fraction form
    3,951.45/5,446.44 = 2,770.47/x
  3. Step 3: Cross multiply
    3,951.45x = 5,446.44 × 2,770.47
  4. Step 4: Simplify right side
    3,951.45x = 15,089,198.63
  5. Step 5: Solve for x
    x = 15,089,198.63/3,951.45
  6. Step 6: Final answer
    x = 3,818.65

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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.