Home / 2,819.16-3,890.04-1,623.96

Finding the Fourth Proportional to 2,819.16, 3,890.04 and 1,623.96

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Solution

The fourth proportional to 2,819.16, 3,890.04 and 1,623.96 is: 2,240.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,819.16 : 3,890.04 = 1,623.96 : x
  2. Step 2: Convert to fraction form
    2,819.16/3,890.04 = 1,623.96/x
  3. Step 3: Cross multiply
    2,819.16x = 3,890.04 × 1,623.96
  4. Step 4: Simplify right side
    2,819.16x = 6,317,269.36
  5. Step 5: Solve for x
    x = 6,317,269.36/2,819.16
  6. Step 6: Final answer
    x = 2,240.83

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.