Home / 3,863.38-5,331.77-2,185.14

Finding the Fourth Proportional to 3,863.38, 5,331.77 and 2,185.14

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Solution

The fourth proportional to 3,863.38, 5,331.77 and 2,185.14 is: 3,015.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,863.38 : 5,331.77 = 2,185.14 : x
  2. Step 2: Convert to fraction form
    3,863.38/5,331.77 = 2,185.14/x
  3. Step 3: Cross multiply
    3,863.38x = 5,331.77 × 2,185.14
  4. Step 4: Simplify right side
    3,863.38x = 11,650,663.90
  5. Step 5: Solve for x
    x = 11,650,663.90/3,863.38
  6. Step 6: Final answer
    x = 3,015.67

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Find fourth proportional to 1,931.69, 2,665.89 and 1,092.57
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 (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.