Home / 6,221.31-8,585.28-3,388.73

Finding the Fourth Proportional to 6,221.31, 8,585.28 and 3,388.73

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Solution

The fourth proportional to 6,221.31, 8,585.28 and 3,388.73 is: 4,676.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,221.31 : 8,585.28 = 3,388.73 : x
  2. Step 2: Convert to fraction form
    6,221.31/8,585.28 = 3,388.73/x
  3. Step 3: Cross multiply
    6,221.31x = 8,585.28 × 3,388.73
  4. Step 4: Simplify right side
    6,221.31x = 29,093,195.89
  5. Step 5: Solve for x
    x = 29,093,195.89/6,221.31
  6. Step 6: Final answer
    x = 4,676.38

Related Problems

Find fourth proportional to 3,110.66, 4,292.64 and 1,694.37
Half scale
Find fourth proportional to 12,442.62, 17,170.56 and 6,777.46
Double scale
Find fourth proportional to 6,222.31, 8,586.66 and 3,389.73
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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.