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Finding the Fourth Proportional to 3,984.28, 5,976.41 and 1,897.96

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Solution

The fourth proportional to 3,984.28, 5,976.41 and 1,897.96 is: 2,846.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,984.28 : 5,976.41 = 1,897.96 : x
  2. Step 2: Convert to fraction form
    3,984.28/5,976.41 = 1,897.96/x
  3. Step 3: Cross multiply
    3,984.28x = 5,976.41 × 1,897.96
  4. Step 4: Simplify right side
    3,984.28x = 11,342,957.24
  5. Step 5: Solve for x
    x = 11,342,957.24/3,984.28
  6. Step 6: Final answer
    x = 2,846.93

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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.