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Finding the Fourth Proportional to 6,241.30, 8,612.79 and 3,408.59

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Solution

The fourth proportional to 6,241.30, 8,612.79 and 3,408.59 is: 4,703.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,241.30 : 8,612.79 = 3,408.59 : x
  2. Step 2: Convert to fraction form
    6,241.30/8,612.79 = 3,408.59/x
  3. Step 3: Cross multiply
    6,241.30x = 8,612.79 × 3,408.59
  4. Step 4: Simplify right side
    6,241.30x = 29,357,469.87
  5. Step 5: Solve for x
    x = 29,357,469.87/6,241.30
  6. Step 6: Final answer
    x = 4,703.75

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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.