Home / 7,172.09-10,756.50-2,728.17

Finding the Fourth Proportional to 7,172.09, 10,756.50 and 2,728.17

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Solution

The fourth proportional to 7,172.09, 10,756.50 and 2,728.17 is: 4,091.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,172.09 : 10,756.50 = 2,728.17 : x
  2. Step 2: Convert to fraction form
    7,172.09/10,756.50 = 2,728.17/x
  3. Step 3: Cross multiply
    7,172.09x = 10,756.50 × 2,728.17
  4. Step 4: Simplify right side
    7,172.09x = 29,345,560.61
  5. Step 5: Solve for x
    x = 29,345,560.61/7,172.09
  6. Step 6: Final answer
    x = 4,091.63

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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.