Home / 3,219.94-4,827.48-1,271.62

Finding the Fourth Proportional to 3,219.94, 4,827.48 and 1,271.62

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Solution

The fourth proportional to 3,219.94, 4,827.48 and 1,271.62 is: 1,906.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,219.94 : 4,827.48 = 1,271.62 : x
  2. Step 2: Convert to fraction form
    3,219.94/4,827.48 = 1,271.62/x
  3. Step 3: Cross multiply
    3,219.94x = 4,827.48 × 1,271.62
  4. Step 4: Simplify right side
    3,219.94x = 6,138,720.12
  5. Step 5: Solve for x
    x = 6,138,720.12/3,219.94
  6. Step 6: Final answer
    x = 1,906.47

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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.