Home / 3,215.75-4,812.66-2,696.33

Finding the Fourth Proportional to 3,215.75, 4,812.66 and 2,696.33

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Solution

The fourth proportional to 3,215.75, 4,812.66 and 2,696.33 is: 4,035.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,215.75 : 4,812.66 = 2,696.33 : x
  2. Step 2: Convert to fraction form
    3,215.75/4,812.66 = 2,696.33/x
  3. Step 3: Cross multiply
    3,215.75x = 4,812.66 × 2,696.33
  4. Step 4: Simplify right side
    3,215.75x = 12,976,531.57
  5. Step 5: Solve for x
    x = 12,976,531.57/3,215.75
  6. Step 6: Final answer
    x = 4,035.31

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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.