Home / 2,767.68-3,819.52-1,648.32

Finding the Fourth Proportional to 2,767.68, 3,819.52 and 1,648.32

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Solution

The fourth proportional to 2,767.68, 3,819.52 and 1,648.32 is: 2,274.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,767.68 : 3,819.52 = 1,648.32 : x
  2. Step 2: Convert to fraction form
    2,767.68/3,819.52 = 1,648.32/x
  3. Step 3: Cross multiply
    2,767.68x = 3,819.52 × 1,648.32
  4. Step 4: Simplify right side
    2,767.68x = 6,295,791.21
  5. Step 5: Solve for x
    x = 6,295,791.21/2,767.68
  6. Step 6: Final answer
    x = 2,274.75

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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.