Home / 4,172.15-5,757.53-2,680.62

Finding the Fourth Proportional to 4,172.15, 5,757.53 and 2,680.62

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Solution

The fourth proportional to 4,172.15, 5,757.53 and 2,680.62 is: 3,699.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,172.15 : 5,757.53 = 2,680.62 : x
  2. Step 2: Convert to fraction form
    4,172.15/5,757.53 = 2,680.62/x
  3. Step 3: Cross multiply
    4,172.15x = 5,757.53 × 2,680.62
  4. Step 4: Simplify right side
    4,172.15x = 15,433,736.67
  5. Step 5: Solve for x
    x = 15,433,736.67/4,172.15
  6. Step 6: Final answer
    x = 3,699.23

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.