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Finding the Fourth Proportional to 2,049.93, 3,075.29 and 663.61

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Solution

The fourth proportional to 2,049.93, 3,075.29 and 663.61 is: 995.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,049.93 : 3,075.29 = 663.61 : x
  2. Step 2: Convert to fraction form
    2,049.93/3,075.29 = 663.61/x
  3. Step 3: Cross multiply
    2,049.93x = 3,075.29 × 663.61
  4. Step 4: Simplify right side
    2,049.93x = 2,040,793.20
  5. Step 5: Solve for x
    x = 2,040,793.20/2,049.93
  6. Step 6: Final answer
    x = 995.54

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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.