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Finding the Fourth Proportional to 4,747.60, 7,118.64 and 2,281.32

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Solution

The fourth proportional to 4,747.60, 7,118.64 and 2,281.32 is: 3,420.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,747.60 : 7,118.64 = 2,281.32 : x
  2. Step 2: Convert to fraction form
    4,747.60/7,118.64 = 2,281.32/x
  3. Step 3: Cross multiply
    4,747.60x = 7,118.64 × 2,281.32
  4. Step 4: Simplify right side
    4,747.60x = 16,239,895.80
  5. Step 5: Solve for x
    x = 16,239,895.80/4,747.60
  6. Step 6: Final answer
    x = 3,420.65

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