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Finding the Fourth Proportional to 6,241.36, 8,613.09 and 3,408.76

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Solution

The fourth proportional to 6,241.36, 8,613.09 and 3,408.76 is: 4,704.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,241.36 : 8,613.09 = 3,408.76 : x
  2. Step 2: Convert to fraction form
    6,241.36/8,613.09 = 3,408.76/x
  3. Step 3: Cross multiply
    6,241.36x = 8,613.09 × 3,408.76
  4. Step 4: Simplify right side
    6,241.36x = 29,359,913.60
  5. Step 5: Solve for x
    x = 29,359,913.60/6,241.36
  6. Step 6: Final answer
    x = 4,704.09

Related Problems

Find fourth proportional to 3,120.68, 4,306.55 and 1,704.38
Half scale
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Double scale
Find fourth proportional to 6,242.36, 8,614.47 and 3,409.76
Similar ratio
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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.