Home / 2,688.97-4,033.93-1,228.27

Finding the Fourth Proportional to 2,688.97, 4,033.93 and 1,228.27

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Solution

The fourth proportional to 2,688.97, 4,033.93 and 1,228.27 is: 1,842.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,688.97 : 4,033.93 = 1,228.27 : x
  2. Step 2: Convert to fraction form
    2,688.97/4,033.93 = 1,228.27/x
  3. Step 3: Cross multiply
    2,688.97x = 4,033.93 × 1,228.27
  4. Step 4: Simplify right side
    2,688.97x = 4,954,749.06
  5. Step 5: Solve for x
    x = 4,954,749.06/2,688.97
  6. Step 6: Final answer
    x = 1,842.62

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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.