Home / 2,813.96-3,882.32-1,694.47

Finding the Fourth Proportional to 2,813.96, 3,882.32 and 1,694.47

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Solution

The fourth proportional to 2,813.96, 3,882.32 and 1,694.47 is: 2,337.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,813.96 : 3,882.32 = 1,694.47 : x
  2. Step 2: Convert to fraction form
    2,813.96/3,882.32 = 1,694.47/x
  3. Step 3: Cross multiply
    2,813.96x = 3,882.32 × 1,694.47
  4. Step 4: Simplify right side
    2,813.96x = 6,578,469.30
  5. Step 5: Solve for x
    x = 6,578,469.30/2,813.96
  6. Step 6: Final answer
    x = 2,337.80

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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.