Home / 3,946.18-5,440.89-3,197.38

Finding the Fourth Proportional to 3,946.18, 5,440.89 and 3,197.38

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Solution

The fourth proportional to 3,946.18, 5,440.89 and 3,197.38 is: 4,408.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,946.18 : 5,440.89 = 3,197.38 : x
  2. Step 2: Convert to fraction form
    3,946.18/5,440.89 = 3,197.38/x
  3. Step 3: Cross multiply
    3,946.18x = 5,440.89 × 3,197.38
  4. Step 4: Simplify right side
    3,946.18x = 17,396,592.87
  5. Step 5: Solve for x
    x = 17,396,592.87/3,946.18
  6. Step 6: Final answer
    x = 4,408.46

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Half scale
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Double scale
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.