Home / 5,678.36-8,517.64-2,755.95

Finding the Fourth Proportional to 5,678.36, 8,517.64 and 2,755.95

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Solution

The fourth proportional to 5,678.36, 8,517.64 and 2,755.95 is: 4,133.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,678.36 : 8,517.64 = 2,755.95 : x
  2. Step 2: Convert to fraction form
    5,678.36/8,517.64 = 2,755.95/x
  3. Step 3: Cross multiply
    5,678.36x = 8,517.64 × 2,755.95
  4. Step 4: Simplify right side
    5,678.36x = 23,474,189.96
  5. Step 5: Solve for x
    x = 23,474,189.96/5,678.36
  6. Step 6: Final answer
    x = 4,133.97

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.