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Finding the Fourth Proportional to 3,583.98, 4,945.73 and 1,990.73

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Solution

The fourth proportional to 3,583.98, 4,945.73 and 1,990.73 is: 2,747.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,583.98 : 4,945.73 = 1,990.73 : x
  2. Step 2: Convert to fraction form
    3,583.98/4,945.73 = 1,990.73/x
  3. Step 3: Cross multiply
    3,583.98x = 4,945.73 × 1,990.73
  4. Step 4: Simplify right side
    3,583.98x = 9,845,613.08
  5. Step 5: Solve for x
    x = 9,845,613.08/3,583.98
  6. Step 6: Final answer
    x = 2,747.12

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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.