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Finding the Fourth Proportional to 5,205.40, 7,799.46 and 3,663.16

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Solution

The fourth proportional to 5,205.40, 7,799.46 and 3,663.16 is: 5,488.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,205.40 : 7,799.46 = 3,663.16 : x
  2. Step 2: Convert to fraction form
    5,205.40/7,799.46 = 3,663.16/x
  3. Step 3: Cross multiply
    5,205.40x = 7,799.46 × 3,663.16
  4. Step 4: Simplify right side
    5,205.40x = 28,570,669.89
  5. Step 5: Solve for x
    x = 28,570,669.89/5,205.40
  6. Step 6: Final answer
    x = 5,488.66

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