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Finding the Fourth Proportional to 5,726.93, 8,590.40 and 1,831.64

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Solution

The fourth proportional to 5,726.93, 8,590.40 and 1,831.64 is: 2,747.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,726.93 : 8,590.40 = 1,831.64 : x
  2. Step 2: Convert to fraction form
    5,726.93/8,590.40 = 1,831.64/x
  3. Step 3: Cross multiply
    5,726.93x = 8,590.40 × 1,831.64
  4. Step 4: Simplify right side
    5,726.93x = 15,734,520.26
  5. Step 5: Solve for x
    x = 15,734,520.26/5,726.93
  6. Step 6: Final answer
    x = 2,747.46

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