Home / 6,241.40-8,612.85-3,408.72

Finding the Fourth Proportional to 6,241.40, 8,612.85 and 3,408.72

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Solution

The fourth proportional to 6,241.40, 8,612.85 and 3,408.72 is: 4,703.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,241.40 : 8,612.85 = 3,408.72 : x
  2. Step 2: Convert to fraction form
    6,241.40/8,612.85 = 3,408.72/x
  3. Step 3: Cross multiply
    6,241.40x = 8,612.85 × 3,408.72
  4. Step 4: Simplify right side
    6,241.40x = 29,358,794.05
  5. Step 5: Solve for x
    x = 29,358,794.05/6,241.40
  6. Step 6: Final answer
    x = 4,703.88

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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.