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Finding the Fourth Proportional to 2,020.78, 3,030.06 and 633.73

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Solution

The fourth proportional to 2,020.78, 3,030.06 and 633.73 is: 950.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,020.78 : 3,030.06 = 633.73 : x
  2. Step 2: Convert to fraction form
    2,020.78/3,030.06 = 633.73/x
  3. Step 3: Cross multiply
    2,020.78x = 3,030.06 × 633.73
  4. Step 4: Simplify right side
    2,020.78x = 1,920,239.92
  5. Step 5: Solve for x
    x = 1,920,239.92/2,020.78
  6. Step 6: Final answer
    x = 950.25

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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.