Home / 3,408.16-5,112.03-1,216.78

Finding the Fourth Proportional to 3,408.16, 5,112.03 and 1,216.78

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Solution

The fourth proportional to 3,408.16, 5,112.03 and 1,216.78 is: 1,825.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,408.16 : 5,112.03 = 1,216.78 : x
  2. Step 2: Convert to fraction form
    3,408.16/5,112.03 = 1,216.78/x
  3. Step 3: Cross multiply
    3,408.16x = 5,112.03 × 1,216.78
  4. Step 4: Simplify right side
    3,408.16x = 6,220,215.86
  5. Step 5: Solve for x
    x = 6,220,215.86/3,408.16
  6. Step 6: Final answer
    x = 1,825.10

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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.