Home / 2,819.07-4,220.91-2,039.85

Finding the Fourth Proportional to 2,819.07, 4,220.91 and 2,039.85

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Solution

The fourth proportional to 2,819.07, 4,220.91 and 2,039.85 is: 3,054.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,819.07 : 4,220.91 = 2,039.85 : x
  2. Step 2: Convert to fraction form
    2,819.07/4,220.91 = 2,039.85/x
  3. Step 3: Cross multiply
    2,819.07x = 4,220.91 × 2,039.85
  4. Step 4: Simplify right side
    2,819.07x = 8,610,023.26
  5. Step 5: Solve for x
    x = 8,610,023.26/2,819.07
  6. Step 6: Final answer
    x = 3,054.21

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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.