Home / 3,945.84-5,441.67-2,453.28

Finding the Fourth Proportional to 3,945.84, 5,441.67 and 2,453.28

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Solution

The fourth proportional to 3,945.84, 5,441.67 and 2,453.28 is: 3,383.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,945.84 : 5,441.67 = 2,453.28 : x
  2. Step 2: Convert to fraction form
    3,945.84/5,441.67 = 2,453.28/x
  3. Step 3: Cross multiply
    3,945.84x = 5,441.67 × 2,453.28
  4. Step 4: Simplify right side
    3,945.84x = 13,349,940.18
  5. Step 5: Solve for x
    x = 13,349,940.18/3,945.84
  6. Step 6: Final answer
    x = 3,383.29

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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.