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Finding the Fourth Proportional to 4,508.73, 6,763.73 and 1,388.99

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Solution

The fourth proportional to 4,508.73, 6,763.73 and 1,388.99 is: 2,083.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,508.73 : 6,763.73 = 1,388.99 : x
  2. Step 2: Convert to fraction form
    4,508.73/6,763.73 = 1,388.99/x
  3. Step 3: Cross multiply
    4,508.73x = 6,763.73 × 1,388.99
  4. Step 4: Simplify right side
    4,508.73x = 9,394,717.78
  5. Step 5: Solve for x
    x = 9,394,717.78/4,508.73
  6. Step 6: Final answer
    x = 2,083.67

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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.