Home / 6,239.44-8,612.34-3,850.15

Finding the Fourth Proportional to 6,239.44, 8,612.34 and 3,850.15

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Solution

The fourth proportional to 6,239.44, 8,612.34 and 3,850.15 is: 5,314.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,239.44 : 8,612.34 = 3,850.15 : x
  2. Step 2: Convert to fraction form
    6,239.44/8,612.34 = 3,850.15/x
  3. Step 3: Cross multiply
    6,239.44x = 8,612.34 × 3,850.15
  4. Step 4: Simplify right side
    6,239.44x = 33,158,750.11
  5. Step 5: Solve for x
    x = 33,158,750.11/6,239.44
  6. Step 6: Final answer
    x = 5,314.38

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Half scale
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Double scale
Find fourth proportional to 6,240.44, 8,613.72 and 3,851.15
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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.