Home / 6,791.92-10,187.78-1,861.65

Finding the Fourth Proportional to 6,791.92, 10,187.78 and 1,861.65

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Solution

The fourth proportional to 6,791.92, 10,187.78 and 1,861.65 is: 2,792.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,791.92 : 10,187.78 = 1,861.65 : x
  2. Step 2: Convert to fraction form
    6,791.92/10,187.78 = 1,861.65/x
  3. Step 3: Cross multiply
    6,791.92x = 10,187.78 × 1,861.65
  4. Step 4: Simplify right side
    6,791.92x = 18,966,071.33
  5. Step 5: Solve for x
    x = 18,966,071.33/6,791.92
  6. Step 6: Final answer
    x = 2,792.45

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1.5x scale

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.