Home / 3,271.75-4,909.20-1,628.44

Finding the Fourth Proportional to 3,271.75, 4,909.20 and 1,628.44

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Solution

The fourth proportional to 3,271.75, 4,909.20 and 1,628.44 is: 2,443.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,271.75 : 4,909.20 = 1,628.44 : x
  2. Step 2: Convert to fraction form
    3,271.75/4,909.20 = 1,628.44/x
  3. Step 3: Cross multiply
    3,271.75x = 4,909.20 × 1,628.44
  4. Step 4: Simplify right side
    3,271.75x = 7,994,337.65
  5. Step 5: Solve for x
    x = 7,994,337.65/3,271.75
  6. Step 6: Final answer
    x = 2,443.44

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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.