Home / 2,813.77-3,882.78-1,634.92

Finding the Fourth Proportional to 2,813.77, 3,882.78 and 1,634.92

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Solution

The fourth proportional to 2,813.77, 3,882.78 and 1,634.92 is: 2,256.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,813.77 : 3,882.78 = 1,634.92 : x
  2. Step 2: Convert to fraction form
    2,813.77/3,882.78 = 1,634.92/x
  3. Step 3: Cross multiply
    2,813.77x = 3,882.78 × 1,634.92
  4. Step 4: Simplify right side
    2,813.77x = 6,348,007.09
  5. Step 5: Solve for x
    x = 6,348,007.09/2,813.77
  6. Step 6: Final answer
    x = 2,256.05

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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.