Home / 7,212.57-10,819.26-2,018.85

Finding the Fourth Proportional to 7,212.57, 10,819.26 and 2,018.85

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Solution

The fourth proportional to 7,212.57, 10,819.26 and 2,018.85 is: 3,028.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,212.57 : 10,819.26 = 2,018.85 : x
  2. Step 2: Convert to fraction form
    7,212.57/10,819.26 = 2,018.85/x
  3. Step 3: Cross multiply
    7,212.57x = 10,819.26 × 2,018.85
  4. Step 4: Simplify right side
    7,212.57x = 21,842,463.05
  5. Step 5: Solve for x
    x = 21,842,463.05/7,212.57
  6. Step 6: Final answer
    x = 3,028.39

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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.