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Finding the Fourth Proportional to 4,662.40, 6,979.02 and 3,485.56

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Solution

The fourth proportional to 4,662.40, 6,979.02 and 3,485.56 is: 5,217.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,662.40 : 6,979.02 = 3,485.56 : x
  2. Step 2: Convert to fraction form
    4,662.40/6,979.02 = 3,485.56/x
  3. Step 3: Cross multiply
    4,662.40x = 6,979.02 × 3,485.56
  4. Step 4: Simplify right side
    4,662.40x = 24,325,792.95
  5. Step 5: Solve for x
    x = 24,325,792.95/4,662.40
  6. Step 6: Final answer
    x = 5,217.44

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.