Home / 3,408.17-5,112.59-1,328.33

Finding the Fourth Proportional to 3,408.17, 5,112.59 and 1,328.33

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Solution

The fourth proportional to 3,408.17, 5,112.59 and 1,328.33 is: 1,992.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,408.17 : 5,112.59 = 1,328.33 : x
  2. Step 2: Convert to fraction form
    3,408.17/5,112.59 = 1,328.33/x
  3. Step 3: Cross multiply
    3,408.17x = 5,112.59 × 1,328.33
  4. Step 4: Simplify right side
    3,408.17x = 6,791,212.81
  5. Step 5: Solve for x
    x = 6,791,212.81/3,408.17
  6. Step 6: Final answer
    x = 1,992.63

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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.