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Finding the Fourth Proportional to 7,241.40, 9,992.76 and 4,684.68

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Solution

The fourth proportional to 7,241.40, 9,992.76 and 4,684.68 is: 6,464.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,241.40 : 9,992.76 = 4,684.68 : x
  2. Step 2: Convert to fraction form
    7,241.40/9,992.76 = 4,684.68/x
  3. Step 3: Cross multiply
    7,241.40x = 9,992.76 × 4,684.68
  4. Step 4: Simplify right side
    7,241.40x = 46,812,882.92
  5. Step 5: Solve for x
    x = 46,812,882.92/7,241.40
  6. Step 6: Final answer
    x = 6,464.62

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.