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Finding the Fourth Proportional to 7,090.97, 10,636.45 and 1,896.71

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Solution

The fourth proportional to 7,090.97, 10,636.45 and 1,896.71 is: 2,845.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,090.97 : 10,636.45 = 1,896.71 : x
  2. Step 2: Convert to fraction form
    7,090.97/10,636.45 = 1,896.71/x
  3. Step 3: Cross multiply
    7,090.97x = 10,636.45 × 1,896.71
  4. Step 4: Simplify right side
    7,090.97x = 20,174,198.41
  5. Step 5: Solve for x
    x = 20,174,198.41/7,090.97
  6. Step 6: Final answer
    x = 2,845.06

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Half scale
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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.