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Finding the Fourth Proportional to 3,895.89, 5,843.83 and 1,298.83

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Solution

The fourth proportional to 3,895.89, 5,843.83 and 1,298.83 is: 1,948.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,895.89 : 5,843.83 = 1,298.83 : x
  2. Step 2: Convert to fraction form
    3,895.89/5,843.83 = 1,298.83/x
  3. Step 3: Cross multiply
    3,895.89x = 5,843.83 × 1,298.83
  4. Step 4: Simplify right side
    3,895.89x = 7,590,112.50
  5. Step 5: Solve for x
    x = 7,590,112.50/3,895.89
  6. Step 6: Final answer
    x = 1,948.24

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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.