Home / 3,768.95-5,651.81-1,172.09

Finding the Fourth Proportional to 3,768.95, 5,651.81 and 1,172.09

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Solution

The fourth proportional to 3,768.95, 5,651.81 and 1,172.09 is: 1,757.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,768.95 : 5,651.81 = 1,172.09 : x
  2. Step 2: Convert to fraction form
    3,768.95/5,651.81 = 1,172.09/x
  3. Step 3: Cross multiply
    3,768.95x = 5,651.81 × 1,172.09
  4. Step 4: Simplify right side
    3,768.95x = 6,624,424.12
  5. Step 5: Solve for x
    x = 6,624,424.12/3,768.95
  6. Step 6: Final answer
    x = 1,757.63

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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.