Home / 7,091.28-10,636.92-1,896.75

Finding the Fourth Proportional to 7,091.28, 10,636.92 and 1,896.75

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Solution

The fourth proportional to 7,091.28, 10,636.92 and 1,896.75 is: 2,845.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,091.28 : 10,636.92 = 1,896.75 : x
  2. Step 2: Convert to fraction form
    7,091.28/10,636.92 = 1,896.75/x
  3. Step 3: Cross multiply
    7,091.28x = 10,636.92 × 1,896.75
  4. Step 4: Simplify right side
    7,091.28x = 20,175,578.01
  5. Step 5: Solve for x
    x = 20,175,578.01/7,091.28
  6. Step 6: Final answer
    x = 2,845.13

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Double scale
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Similar ratio
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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.