Home / 6,221.26-8,585.44-3,388.69

Finding the Fourth Proportional to 6,221.26, 8,585.44 and 3,388.69

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Solution

The fourth proportional to 6,221.26, 8,585.44 and 3,388.69 is: 4,676.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,221.26 : 8,585.44 = 3,388.69 : x
  2. Step 2: Convert to fraction form
    6,221.26/8,585.44 = 3,388.69/x
  3. Step 3: Cross multiply
    6,221.26x = 8,585.44 × 3,388.69
  4. Step 4: Simplify right side
    6,221.26x = 29,093,394.67
  5. Step 5: Solve for x
    x = 29,093,394.67/6,221.26
  6. Step 6: Final answer
    x = 4,676.45

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Half scale
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Double scale
Find fourth proportional to 6,222.26, 8,586.82 and 3,389.69
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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.