Home / 2,330.82-3,494.79-1,405.80

Finding the Fourth Proportional to 2,330.82, 3,494.79 and 1,405.80

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Solution

The fourth proportional to 2,330.82, 3,494.79 and 1,405.80 is: 2,107.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,330.82 : 3,494.79 = 1,405.80 : x
  2. Step 2: Convert to fraction form
    2,330.82/3,494.79 = 1,405.80/x
  3. Step 3: Cross multiply
    2,330.82x = 3,494.79 × 1,405.80
  4. Step 4: Simplify right side
    2,330.82x = 4,912,975.78
  5. Step 5: Solve for x
    x = 4,912,975.78/2,330.82
  6. Step 6: Final answer
    x = 2,107.83

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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.