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Finding the Fourth Proportional to 4,944.80, 7,417.20 and 3,648.80

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Solution

The fourth proportional to 4,944.80, 7,417.20 and 3,648.80 is: 5,473.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,944.80 : 7,417.20 = 3,648.80 : x
  2. Step 2: Convert to fraction form
    4,944.80/7,417.20 = 3,648.80/x
  3. Step 3: Cross multiply
    4,944.80x = 7,417.20 × 3,648.80
  4. Step 4: Simplify right side
    4,944.80x = 27,063,879.36
  5. Step 5: Solve for x
    x = 27,063,879.36/4,944.80
  6. Step 6: Final answer
    x = 5,473.20

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