Home / 6,791.87-10,187.81-1,861.53

Finding the Fourth Proportional to 6,791.87, 10,187.81 and 1,861.53

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Solution

The fourth proportional to 6,791.87, 10,187.81 and 1,861.53 is: 2,792.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,791.87 : 10,187.81 = 1,861.53 : x
  2. Step 2: Convert to fraction form
    6,791.87/10,187.81 = 1,861.53/x
  3. Step 3: Cross multiply
    6,791.87x = 10,187.81 × 1,861.53
  4. Step 4: Simplify right side
    6,791.87x = 18,964,904.64
  5. Step 5: Solve for x
    x = 18,964,904.64/6,791.87
  6. Step 6: Final answer
    x = 2,792.30

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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.