Home / 3,212.88-4,419.90-2,622.12

Finding the Fourth Proportional to 3,212.88, 4,419.90 and 2,622.12

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Solution

The fourth proportional to 3,212.88, 4,419.90 and 2,622.12 is: 3,607.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,212.88 : 4,419.90 = 2,622.12 : x
  2. Step 2: Convert to fraction form
    3,212.88/4,419.90 = 2,622.12/x
  3. Step 3: Cross multiply
    3,212.88x = 4,419.90 × 2,622.12
  4. Step 4: Simplify right side
    3,212.88x = 11,589,508.19
  5. Step 5: Solve for x
    x = 11,589,508.19/3,212.88
  6. Step 6: Final answer
    x = 3,607.20

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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.