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Finding the Fourth Proportional to 5,978.00, 8,251.07 and 3,619.69

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Solution

The fourth proportional to 5,978.00, 8,251.07 and 3,619.69 is: 4,996.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,978.00 : 8,251.07 = 3,619.69 : x
  2. Step 2: Convert to fraction form
    5,978.00/8,251.07 = 3,619.69/x
  3. Step 3: Cross multiply
    5,978.00x = 8,251.07 × 3,619.69
  4. Step 4: Simplify right side
    5,978.00x = 29,866,276.84
  5. Step 5: Solve for x
    x = 29,866,276.84/5,978.00
  6. Step 6: Final answer
    x = 4,996.03

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.