Home / 3,583.82-4,945.66-1,990.42

Finding the Fourth Proportional to 3,583.82, 4,945.66 and 1,990.42

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Solution

The fourth proportional to 3,583.82, 4,945.66 and 1,990.42 is: 2,746.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,583.82 : 4,945.66 = 1,990.42 : x
  2. Step 2: Convert to fraction form
    3,583.82/4,945.66 = 1,990.42/x
  3. Step 3: Cross multiply
    3,583.82x = 4,945.66 × 1,990.42
  4. Step 4: Simplify right side
    3,583.82x = 9,843,923.24
  5. Step 5: Solve for x
    x = 9,843,923.24/3,583.82
  6. Step 6: Final answer
    x = 2,746.77

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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.