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Finding the Fourth Proportional to 6,578.54, 9,078.57 and 3,927.49

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Solution

The fourth proportional to 6,578.54, 9,078.57 and 3,927.49 is: 5,420.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,578.54 : 9,078.57 = 3,927.49 : x
  2. Step 2: Convert to fraction form
    6,578.54/9,078.57 = 3,927.49/x
  3. Step 3: Cross multiply
    6,578.54x = 9,078.57 × 3,927.49
  4. Step 4: Simplify right side
    6,578.54x = 35,655,927.86
  5. Step 5: Solve for x
    x = 35,655,927.86/6,578.54
  6. Step 6: Final answer
    x = 5,420.04

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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.