Home / 3,405.58-5,105.97-1,323.85

Finding the Fourth Proportional to 3,405.58, 5,105.97 and 1,323.85

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Solution

The fourth proportional to 3,405.58, 5,105.97 and 1,323.85 is: 1,984.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,405.58 : 5,105.97 = 1,323.85 : x
  2. Step 2: Convert to fraction form
    3,405.58/5,105.97 = 1,323.85/x
  3. Step 3: Cross multiply
    3,405.58x = 5,105.97 × 1,323.85
  4. Step 4: Simplify right side
    3,405.58x = 6,759,538.38
  5. Step 5: Solve for x
    x = 6,759,538.38/3,405.58
  6. Step 6: Final answer
    x = 1,984.84

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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.