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Finding the Fourth Proportional to 5,984.86, 8,978.81 and 2,286.70

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Solution

The fourth proportional to 5,984.86, 8,978.81 and 2,286.70 is: 3,430.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,984.86 : 8,978.81 = 2,286.70 : x
  2. Step 2: Convert to fraction form
    5,984.86/8,978.81 = 2,286.70/x
  3. Step 3: Cross multiply
    5,984.86x = 8,978.81 × 2,286.70
  4. Step 4: Simplify right side
    5,984.86x = 20,531,844.83
  5. Step 5: Solve for x
    x = 20,531,844.83/5,984.86
  6. Step 6: Final answer
    x = 3,430.63

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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.