Home / 2,824.83-3,899.41-1,916.55

Finding the Fourth Proportional to 2,824.83, 3,899.41 and 1,916.55

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Solution

The fourth proportional to 2,824.83, 3,899.41 and 1,916.55 is: 2,645.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,824.83 : 3,899.41 = 1,916.55 : x
  2. Step 2: Convert to fraction form
    2,824.83/3,899.41 = 1,916.55/x
  3. Step 3: Cross multiply
    2,824.83x = 3,899.41 × 1,916.55
  4. Step 4: Simplify right side
    2,824.83x = 7,473,409.44
  5. Step 5: Solve for x
    x = 7,473,409.44/2,824.83
  6. Step 6: Final answer
    x = 2,645.61

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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.