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Finding the Fourth Proportional to 5,349.63, 7,382.34 and 2,991.79

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Solution

The fourth proportional to 5,349.63, 7,382.34 and 2,991.79 is: 4,128.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,349.63 : 7,382.34 = 2,991.79 : x
  2. Step 2: Convert to fraction form
    5,349.63/7,382.34 = 2,991.79/x
  3. Step 3: Cross multiply
    5,349.63x = 7,382.34 × 2,991.79
  4. Step 4: Simplify right side
    5,349.63x = 22,086,410.99
  5. Step 5: Solve for x
    x = 22,086,410.99/5,349.63
  6. Step 6: Final answer
    x = 4,128.59

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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.