Home / 4,636.40-6,393.42-3,221.69

Finding the Fourth Proportional to 4,636.40, 6,393.42 and 3,221.69

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Solution

The fourth proportional to 4,636.40, 6,393.42 and 3,221.69 is: 4,442.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,636.40 : 6,393.42 = 3,221.69 : x
  2. Step 2: Convert to fraction form
    4,636.40/6,393.42 = 3,221.69/x
  3. Step 3: Cross multiply
    4,636.40x = 6,393.42 × 3,221.69
  4. Step 4: Simplify right side
    4,636.40x = 20,597,585.31
  5. Step 5: Solve for x
    x = 20,597,585.31/4,636.40
  6. Step 6: Final answer
    x = 4,442.59

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Half scale
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Double scale
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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.