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Finding the Fourth Proportional to 4,707.86, 7,061.83 and 1,245.11

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Solution

The fourth proportional to 4,707.86, 7,061.83 and 1,245.11 is: 1,867.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,707.86 : 7,061.83 = 1,245.11 : x
  2. Step 2: Convert to fraction form
    4,707.86/7,061.83 = 1,245.11/x
  3. Step 3: Cross multiply
    4,707.86x = 7,061.83 × 1,245.11
  4. Step 4: Simplify right side
    4,707.86x = 8,792,716.73
  5. Step 5: Solve for x
    x = 8,792,716.73/4,707.86
  6. Step 6: Final answer
    x = 1,867.67

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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.