Home / 6,645.38-9,170.62-3,661.21

Finding the Fourth Proportional to 6,645.38, 9,170.62 and 3,661.21

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Solution

The fourth proportional to 6,645.38, 9,170.62 and 3,661.21 is: 5,052.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,645.38 : 9,170.62 = 3,661.21 : x
  2. Step 2: Convert to fraction form
    6,645.38/9,170.62 = 3,661.21/x
  3. Step 3: Cross multiply
    6,645.38x = 9,170.62 × 3,661.21
  4. Step 4: Simplify right side
    6,645.38x = 33,575,567.96
  5. Step 5: Solve for x
    x = 33,575,567.96/6,645.38
  6. Step 6: Final answer
    x = 5,052.47

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Half scale
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Double scale
Find fourth proportional to 6,646.38, 9,172 and 3,662.21
Similar ratio
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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.