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Finding the Fourth Proportional to 1,704.85, 2,556.99 and 550.60

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Solution

The fourth proportional to 1,704.85, 2,556.99 and 550.60 is: 825.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,704.85 : 2,556.99 = 550.60 : x
  2. Step 2: Convert to fraction form
    1,704.85/2,556.99 = 550.60/x
  3. Step 3: Cross multiply
    1,704.85x = 2,556.99 × 550.60
  4. Step 4: Simplify right side
    1,704.85x = 1,407,878.69
  5. Step 5: Solve for x
    x = 1,407,878.69/1,704.85
  6. Step 6: Final answer
    x = 825.81

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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.