Home / 2,817.28-4,228.08-1,843.12

Finding the Fourth Proportional to 2,817.28, 4,228.08 and 1,843.12

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Solution

The fourth proportional to 2,817.28, 4,228.08 and 1,843.12 is: 2,766.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,817.28 : 4,228.08 = 1,843.12 : x
  2. Step 2: Convert to fraction form
    2,817.28/4,228.08 = 1,843.12/x
  3. Step 3: Cross multiply
    2,817.28x = 4,228.08 × 1,843.12
  4. Step 4: Simplify right side
    2,817.28x = 7,792,858.81
  5. Step 5: Solve for x
    x = 7,792,858.81/2,817.28
  6. Step 6: Final answer
    x = 2,766.09

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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.