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Finding the Fourth Proportional to 6,043.20, 8,339.04 and 3,390

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Solution

The fourth proportional to 6,043.20, 8,339.04 and 3,390 is: 4,677.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,043.20 : 8,339.04 = 3,390 : x
  2. Step 2: Convert to fraction form
    6,043.20/8,339.04 = 3,390/x
  3. Step 3: Cross multiply
    6,043.20x = 8,339.04 × 3,390
  4. Step 4: Simplify right side
    6,043.20x = 28,269,345.60
  5. Step 5: Solve for x
    x = 28,269,345.60/6,043.20
  6. Step 6: Final answer
    x = 4,677.88

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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.