Home / 5,118.60-7,678.02-1,831.92

Finding the Fourth Proportional to 5,118.60, 7,678.02 and 1,831.92

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Solution

The fourth proportional to 5,118.60, 7,678.02 and 1,831.92 is: 2,747.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,118.60 : 7,678.02 = 1,831.92 : x
  2. Step 2: Convert to fraction form
    5,118.60/7,678.02 = 1,831.92/x
  3. Step 3: Cross multiply
    5,118.60x = 7,678.02 × 1,831.92
  4. Step 4: Simplify right side
    5,118.60x = 14,065,518.40
  5. Step 5: Solve for x
    x = 14,065,518.40/5,118.60
  6. Step 6: Final answer
    x = 2,747.92

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