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Finding the Fourth Proportional to 1,704.70, 2,556.21 and 550.30

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Solution

The fourth proportional to 1,704.70, 2,556.21 and 550.30 is: 825.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,704.70 : 2,556.21 = 550.30 : x
  2. Step 2: Convert to fraction form
    1,704.70/2,556.21 = 550.30/x
  3. Step 3: Cross multiply
    1,704.70x = 2,556.21 × 550.30
  4. Step 4: Simplify right side
    1,704.70x = 1,406,682.36
  5. Step 5: Solve for x
    x = 1,406,682.36/1,704.70
  6. Step 6: Final answer
    x = 825.18

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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.