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Finding the Fourth Proportional to 3,865.86, 5,795.30 and 1,400.10

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Solution

The fourth proportional to 3,865.86, 5,795.30 and 1,400.10 is: 2,098.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,865.86 : 5,795.30 = 1,400.10 : x
  2. Step 2: Convert to fraction form
    3,865.86/5,795.30 = 1,400.10/x
  3. Step 3: Cross multiply
    3,865.86x = 5,795.30 × 1,400.10
  4. Step 4: Simplify right side
    3,865.86x = 8,113,999.53
  5. Step 5: Solve for x
    x = 8,113,999.53/3,865.86
  6. Step 6: Final answer
    x = 2,098.89

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