Home / 3,408.89-5,112.75-943.13

Finding the Fourth Proportional to 3,408.89, 5,112.75 and 943.13

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Solution

The fourth proportional to 3,408.89, 5,112.75 and 943.13 is: 1,414.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,408.89 : 5,112.75 = 943.13 : x
  2. Step 2: Convert to fraction form
    3,408.89/5,112.75 = 943.13/x
  3. Step 3: Cross multiply
    3,408.89x = 5,112.75 × 943.13
  4. Step 4: Simplify right side
    3,408.89x = 4,821,975.89
  5. Step 5: Solve for x
    x = 4,821,975.89/3,408.89
  6. Step 6: Final answer
    x = 1,414.53

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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.