Home / 3,474.42-5,211.50-1,393.80

Finding the Fourth Proportional to 3,474.42, 5,211.50 and 1,393.80

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Solution

The fourth proportional to 3,474.42, 5,211.50 and 1,393.80 is: 2,090.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,474.42 : 5,211.50 = 1,393.80 : x
  2. Step 2: Convert to fraction form
    3,474.42/5,211.50 = 1,393.80/x
  3. Step 3: Cross multiply
    3,474.42x = 5,211.50 × 1,393.80
  4. Step 4: Simplify right side
    3,474.42x = 7,263,781.73
  5. Step 5: Solve for x
    x = 7,263,781.73/3,474.42
  6. Step 6: Final answer
    x = 2,090.65

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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.