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Finding the Fourth Proportional to 6,781.86, 10,171.98 and 1,851.93

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Solution

The fourth proportional to 6,781.86, 10,171.98 and 1,851.93 is: 2,777.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,781.86 : 10,171.98 = 1,851.93 : x
  2. Step 2: Convert to fraction form
    6,781.86/10,171.98 = 1,851.93/x
  3. Step 3: Cross multiply
    6,781.86x = 10,171.98 × 1,851.93
  4. Step 4: Simplify right side
    6,781.86x = 18,837,794.92
  5. Step 5: Solve for x
    x = 18,837,794.92/6,781.86
  6. Step 6: Final answer
    x = 2,777.67

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.