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Finding the Fourth Proportional to 5,243.89, 7,236.57 and 2,885.98

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Solution

The fourth proportional to 5,243.89, 7,236.57 and 2,885.98 is: 3,982.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,243.89 : 7,236.57 = 2,885.98 : x
  2. Step 2: Convert to fraction form
    5,243.89/7,236.57 = 2,885.98/x
  3. Step 3: Cross multiply
    5,243.89x = 7,236.57 × 2,885.98
  4. Step 4: Simplify right side
    5,243.89x = 20,884,596.29
  5. Step 5: Solve for x
    x = 20,884,596.29/5,243.89
  6. Step 6: Final answer
    x = 3,982.65

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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.