Home / 5,213.79-7,821.33-1,704.15

Finding the Fourth Proportional to 5,213.79, 7,821.33 and 1,704.15

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Solution

The fourth proportional to 5,213.79, 7,821.33 and 1,704.15 is: 2,556.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,213.79 : 7,821.33 = 1,704.15 : x
  2. Step 2: Convert to fraction form
    5,213.79/7,821.33 = 1,704.15/x
  3. Step 3: Cross multiply
    5,213.79x = 7,821.33 × 1,704.15
  4. Step 4: Simplify right side
    5,213.79x = 13,328,713.13
  5. Step 5: Solve for x
    x = 13,328,713.13/5,213.79
  6. Step 6: Final answer
    x = 2,556.43

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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.