Home / 2,823.68-3,896.88-1,645.04

Finding the Fourth Proportional to 2,823.68, 3,896.88 and 1,645.04

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Solution

The fourth proportional to 2,823.68, 3,896.88 and 1,645.04 is: 2,270.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,823.68 : 3,896.88 = 1,645.04 : x
  2. Step 2: Convert to fraction form
    2,823.68/3,896.88 = 1,645.04/x
  3. Step 3: Cross multiply
    2,823.68x = 3,896.88 × 1,645.04
  4. Step 4: Simplify right side
    2,823.68x = 6,410,523.48
  5. Step 5: Solve for x
    x = 6,410,523.48/2,823.68
  6. Step 6: Final answer
    x = 2,270.27

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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.