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Finding the Fourth Proportional to 6,078.99, 8,387.82 and 3,719.46

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Solution

The fourth proportional to 6,078.99, 8,387.82 and 3,719.46 is: 5,132.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,078.99 : 8,387.82 = 3,719.46 : x
  2. Step 2: Convert to fraction form
    6,078.99/8,387.82 = 3,719.46/x
  3. Step 3: Cross multiply
    6,078.99x = 8,387.82 × 3,719.46
  4. Step 4: Simplify right side
    6,078.99x = 31,198,160.98
  5. Step 5: Solve for x
    x = 31,198,160.98/6,078.99
  6. Step 6: Final answer
    x = 5,132.13

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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.