Home / 3,212.30-4,819.04-1,021.58

Finding the Fourth Proportional to 3,212.30, 4,819.04 and 1,021.58

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Solution

The fourth proportional to 3,212.30, 4,819.04 and 1,021.58 is: 1,532.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,212.30 : 4,819.04 = 1,021.58 : x
  2. Step 2: Convert to fraction form
    3,212.30/4,819.04 = 1,021.58/x
  3. Step 3: Cross multiply
    3,212.30x = 4,819.04 × 1,021.58
  4. Step 4: Simplify right side
    3,212.30x = 4,923,034.88
  5. Step 5: Solve for x
    x = 4,923,034.88/3,212.30
  6. Step 6: Final answer
    x = 1,532.56

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1.5x scale

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.