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Finding the Fourth Proportional to 4,661.67, 6,987.79 and 2,318.07

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Solution

The fourth proportional to 4,661.67, 6,987.79 and 2,318.07 is: 3,474.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,661.67 : 6,987.79 = 2,318.07 : x
  2. Step 2: Convert to fraction form
    4,661.67/6,987.79 = 2,318.07/x
  3. Step 3: Cross multiply
    4,661.67x = 6,987.79 × 2,318.07
  4. Step 4: Simplify right side
    4,661.67x = 16,198,186.37
  5. Step 5: Solve for x
    x = 16,198,186.37/4,661.67
  6. Step 6: Final answer
    x = 3,474.76

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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.