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Finding the Fourth Proportional to 6,448.54, 9,672.90 and 1,831.54

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Solution

The fourth proportional to 6,448.54, 9,672.90 and 1,831.54 is: 2,747.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,448.54 : 9,672.90 = 1,831.54 : x
  2. Step 2: Convert to fraction form
    6,448.54/9,672.90 = 1,831.54/x
  3. Step 3: Cross multiply
    6,448.54x = 9,672.90 × 1,831.54
  4. Step 4: Simplify right side
    6,448.54x = 17,716,303.27
  5. Step 5: Solve for x
    x = 17,716,303.27/6,448.54
  6. Step 6: Final answer
    x = 2,747.34

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