Home / 5,243.42-7,861.71-2,431.08

Finding the Fourth Proportional to 5,243.42, 7,861.71 and 2,431.08

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Solution

The fourth proportional to 5,243.42, 7,861.71 and 2,431.08 is: 3,645.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,243.42 : 7,861.71 = 2,431.08 : x
  2. Step 2: Convert to fraction form
    5,243.42/7,861.71 = 2,431.08/x
  3. Step 3: Cross multiply
    5,243.42x = 7,861.71 × 2,431.08
  4. Step 4: Simplify right side
    5,243.42x = 19,112,445.95
  5. Step 5: Solve for x
    x = 19,112,445.95/5,243.42
  6. Step 6: Final answer
    x = 3,645.03

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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.