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Finding the Fourth Proportional to 5,482.89, 8,217.18 and 4,787.91

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Solution

The fourth proportional to 5,482.89, 8,217.18 and 4,787.91 is: 7,175.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,482.89 : 8,217.18 = 4,787.91 : x
  2. Step 2: Convert to fraction form
    5,482.89/8,217.18 = 4,787.91/x
  3. Step 3: Cross multiply
    5,482.89x = 8,217.18 × 4,787.91
  4. Step 4: Simplify right side
    5,482.89x = 39,343,118.29
  5. Step 5: Solve for x
    x = 39,343,118.29/5,482.89
  6. Step 6: Final answer
    x = 7,175.62

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