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Finding the Fourth Proportional to 7,090.96, 10,636.44 and 1,896.70

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Solution

The fourth proportional to 7,090.96, 10,636.44 and 1,896.70 is: 2,845.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,090.96 : 10,636.44 = 1,896.70 : x
  2. Step 2: Convert to fraction form
    7,090.96/10,636.44 = 1,896.70/x
  3. Step 3: Cross multiply
    7,090.96x = 10,636.44 × 1,896.70
  4. Step 4: Simplify right side
    7,090.96x = 20,174,135.75
  5. Step 5: Solve for x
    x = 20,174,135.75/7,090.96
  6. Step 6: Final answer
    x = 2,845.05

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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.