Home / 2,812.08-3,880.81-1,693.37

Finding the Fourth Proportional to 2,812.08, 3,880.81 and 1,693.37

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Solution

The fourth proportional to 2,812.08, 3,880.81 and 1,693.37 is: 2,336.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,812.08 : 3,880.81 = 1,693.37 : x
  2. Step 2: Convert to fraction form
    2,812.08/3,880.81 = 1,693.37/x
  3. Step 3: Cross multiply
    2,812.08x = 3,880.81 × 1,693.37
  4. Step 4: Simplify right side
    2,812.08x = 6,571,659.05
  5. Step 5: Solve for x
    x = 6,571,659.05/2,812.08
  6. Step 6: Final answer
    x = 2,336.94

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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.