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Finding the Fourth Proportional to 5,509.76, 8,258.72 and 2,045.12

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Solution

The fourth proportional to 5,509.76, 8,258.72 and 2,045.12 is: 3,065.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,509.76 : 8,258.72 = 2,045.12 : x
  2. Step 2: Convert to fraction form
    5,509.76/8,258.72 = 2,045.12/x
  3. Step 3: Cross multiply
    5,509.76x = 8,258.72 × 2,045.12
  4. Step 4: Simplify right side
    5,509.76x = 16,890,073.45
  5. Step 5: Solve for x
    x = 16,890,073.45/5,509.76
  6. Step 6: Final answer
    x = 3,065.48

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