Home / 2,865.75-4,297.26-1,111.56

Finding the Fourth Proportional to 2,865.75, 4,297.26 and 1,111.56

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Solution

The fourth proportional to 2,865.75, 4,297.26 and 1,111.56 is: 1,666.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,865.75 : 4,297.26 = 1,111.56 : x
  2. Step 2: Convert to fraction form
    2,865.75/4,297.26 = 1,111.56/x
  3. Step 3: Cross multiply
    2,865.75x = 4,297.26 × 1,111.56
  4. Step 4: Simplify right side
    2,865.75x = 4,776,662.33
  5. Step 5: Solve for x
    x = 4,776,662.33/2,865.75
  6. Step 6: Final answer
    x = 1,666.81

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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.