Home / 3,933.09-5,427.75-2,255.03

Finding the Fourth Proportional to 3,933.09, 5,427.75 and 2,255.03

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Solution

The fourth proportional to 3,933.09, 5,427.75 and 2,255.03 is: 3,111.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,933.09 : 5,427.75 = 2,255.03 : x
  2. Step 2: Convert to fraction form
    3,933.09/5,427.75 = 2,255.03/x
  3. Step 3: Cross multiply
    3,933.09x = 5,427.75 × 2,255.03
  4. Step 4: Simplify right side
    3,933.09x = 12,239,711.94
  5. Step 5: Solve for x
    x = 12,239,711.94/3,933.09
  6. Step 6: Final answer
    x = 3,111.98

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1.5x scale

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.