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Finding the Fourth Proportional to 4,978.02, 7,463.37 and 1,690.23

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Solution

The fourth proportional to 4,978.02, 7,463.37 and 1,690.23 is: 2,534.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,978.02 : 7,463.37 = 1,690.23 : x
  2. Step 2: Convert to fraction form
    4,978.02/7,463.37 = 1,690.23/x
  3. Step 3: Cross multiply
    4,978.02x = 7,463.37 × 1,690.23
  4. Step 4: Simplify right side
    4,978.02x = 12,614,811.88
  5. Step 5: Solve for x
    x = 12,614,811.88/4,978.02
  6. Step 6: Final answer
    x = 2,534.10

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