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Finding the Fourth Proportional to 7,892.31, 10,886.79 and 5,058.68

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Solution

The fourth proportional to 7,892.31, 10,886.79 and 5,058.68 is: 6,978.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,892.31 : 10,886.79 = 5,058.68 : x
  2. Step 2: Convert to fraction form
    7,892.31/10,886.79 = 5,058.68/x
  3. Step 3: Cross multiply
    7,892.31x = 10,886.79 × 5,058.68
  4. Step 4: Simplify right side
    7,892.31x = 55,072,732.40
  5. Step 5: Solve for x
    x = 55,072,732.40/7,892.31
  6. Step 6: Final answer
    x = 6,978.03

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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.