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Finding the Fourth Proportional to 5,307.44, 7,961.16 and 1,411.86

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Solution

The fourth proportional to 5,307.44, 7,961.16 and 1,411.86 is: 2,117.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,307.44 : 7,961.16 = 1,411.86 : x
  2. Step 2: Convert to fraction form
    5,307.44/7,961.16 = 1,411.86/x
  3. Step 3: Cross multiply
    5,307.44x = 7,961.16 × 1,411.86
  4. Step 4: Simplify right side
    5,307.44x = 11,240,043.36
  5. Step 5: Solve for x
    x = 11,240,043.36/5,307.44
  6. Step 6: Final answer
    x = 2,117.79

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