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Finding the Fourth Proportional to 6,408.30, 8,845.14 and 4,520.43

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Solution

The fourth proportional to 6,408.30, 8,845.14 and 4,520.43 is: 6,239.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,408.30 : 8,845.14 = 4,520.43 : x
  2. Step 2: Convert to fraction form
    6,408.30/8,845.14 = 4,520.43/x
  3. Step 3: Cross multiply
    6,408.30x = 8,845.14 × 4,520.43
  4. Step 4: Simplify right side
    6,408.30x = 39,983,836.21
  5. Step 5: Solve for x
    x = 39,983,836.21/6,408.30
  6. Step 6: Final answer
    x = 6,239.38

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1.5x scale

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.