Home / 3,891.68-5,836.32-1,916.24

Finding the Fourth Proportional to 3,891.68, 5,836.32 and 1,916.24

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Solution

The fourth proportional to 3,891.68, 5,836.32 and 1,916.24 is: 2,873.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,891.68 : 5,836.32 = 1,916.24 : x
  2. Step 2: Convert to fraction form
    3,891.68/5,836.32 = 1,916.24/x
  3. Step 3: Cross multiply
    3,891.68x = 5,836.32 × 1,916.24
  4. Step 4: Simplify right side
    3,891.68x = 11,183,789.84
  5. Step 5: Solve for x
    x = 11,183,789.84/3,891.68
  6. Step 6: Final answer
    x = 2,873.77

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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.