Home / 3,109.41-4,661.09-1,995.69

Finding the Fourth Proportional to 3,109.41, 4,661.09 and 1,995.69

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Solution

The fourth proportional to 3,109.41, 4,661.09 and 1,995.69 is: 2,991.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,109.41 : 4,661.09 = 1,995.69 : x
  2. Step 2: Convert to fraction form
    3,109.41/4,661.09 = 1,995.69/x
  3. Step 3: Cross multiply
    3,109.41x = 4,661.09 × 1,995.69
  4. Step 4: Simplify right side
    3,109.41x = 9,302,090.69
  5. Step 5: Solve for x
    x = 9,302,090.69/3,109.41
  6. Step 6: Final answer
    x = 2,991.59

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Double scale
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.