Home / 2,819.08-3,889.92-1,771.48

Finding the Fourth Proportional to 2,819.08, 3,889.92 and 1,771.48

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Solution

The fourth proportional to 2,819.08, 3,889.92 and 1,771.48 is: 2,444.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,819.08 : 3,889.92 = 1,771.48 : x
  2. Step 2: Convert to fraction form
    2,819.08/3,889.92 = 1,771.48/x
  3. Step 3: Cross multiply
    2,819.08x = 3,889.92 × 1,771.48
  4. Step 4: Simplify right side
    2,819.08x = 6,890,915.48
  5. Step 5: Solve for x
    x = 6,890,915.48/2,819.08
  6. Step 6: Final answer
    x = 2,444.38

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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.