Home / 6,221.23-8,585.49-3,388.71

Finding the Fourth Proportional to 6,221.23, 8,585.49 and 3,388.71

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Solution

The fourth proportional to 6,221.23, 8,585.49 and 3,388.71 is: 4,676.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,221.23 : 8,585.49 = 3,388.71 : x
  2. Step 2: Convert to fraction form
    6,221.23/8,585.49 = 3,388.71/x
  3. Step 3: Cross multiply
    6,221.23x = 8,585.49 × 3,388.71
  4. Step 4: Simplify right side
    6,221.23x = 29,093,703.62
  5. Step 5: Solve for x
    x = 29,093,703.62/6,221.23
  6. Step 6: Final answer
    x = 4,676.52

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Half scale
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Double scale
Find fourth proportional to 6,222.23, 8,586.87 and 3,389.71
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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.