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Finding the Fourth Proportional to 3,143.98, 4,724.08 and 2,800.54

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Solution

The fourth proportional to 3,143.98, 4,724.08 and 2,800.54 is: 4,208.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,143.98 : 4,724.08 = 2,800.54 : x
  2. Step 2: Convert to fraction form
    3,143.98/4,724.08 = 2,800.54/x
  3. Step 3: Cross multiply
    3,143.98x = 4,724.08 × 2,800.54
  4. Step 4: Simplify right side
    3,143.98x = 13,229,975.00
  5. Step 5: Solve for x
    x = 13,229,975.00/3,143.98
  6. Step 6: Final answer
    x = 4,208.03

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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.