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Finding the Fourth Proportional to 4,998.55, 7,489.65 and 1,709.86

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Solution

The fourth proportional to 4,998.55, 7,489.65 and 1,709.86 is: 2,561.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,998.55 : 7,489.65 = 1,709.86 : x
  2. Step 2: Convert to fraction form
    4,998.55/7,489.65 = 1,709.86/x
  3. Step 3: Cross multiply
    4,998.55x = 7,489.65 × 1,709.86
  4. Step 4: Simplify right side
    4,998.55x = 12,806,252.95
  5. Step 5: Solve for x
    x = 12,806,252.95/4,998.55
  6. Step 6: Final answer
    x = 2,561.99

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