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Finding the Fourth Proportional to 4,728.73, 7,088.44 and 1,765

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Solution

The fourth proportional to 4,728.73, 7,088.44 and 1,765 is: 2,645.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,728.73 : 7,088.44 = 1,765 : x
  2. Step 2: Convert to fraction form
    4,728.73/7,088.44 = 1,765/x
  3. Step 3: Cross multiply
    4,728.73x = 7,088.44 × 1,765
  4. Step 4: Simplify right side
    4,728.73x = 12,511,096.60
  5. Step 5: Solve for x
    x = 12,511,096.60/4,728.73
  6. Step 6: Final answer
    x = 2,645.76

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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.