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Finding the Fourth Proportional to 6,241.09, 8,612.64 and 3,408.45

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Solution

The fourth proportional to 6,241.09, 8,612.64 and 3,408.45 is: 4,703.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,241.09 : 8,612.64 = 3,408.45 : x
  2. Step 2: Convert to fraction form
    6,241.09/8,612.64 = 3,408.45/x
  3. Step 3: Cross multiply
    6,241.09x = 8,612.64 × 3,408.45
  4. Step 4: Simplify right side
    6,241.09x = 29,355,752.81
  5. Step 5: Solve for x
    x = 29,355,752.81/6,241.09
  6. Step 6: Final answer
    x = 4,703.63

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Half scale
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Double scale
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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.