Home / 7,622.46-11,427.12-2,945.75

Finding the Fourth Proportional to 7,622.46, 11,427.12 and 2,945.75

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Solution

The fourth proportional to 7,622.46, 11,427.12 and 2,945.75 is: 4,416.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,622.46 : 11,427.12 = 2,945.75 : x
  2. Step 2: Convert to fraction form
    7,622.46/11,427.12 = 2,945.75/x
  3. Step 3: Cross multiply
    7,622.46x = 11,427.12 × 2,945.75
  4. Step 4: Simplify right side
    7,622.46x = 33,661,486.31
  5. Step 5: Solve for x
    x = 33,661,486.31/7,622.46
  6. Step 6: Final answer
    x = 4,416.09

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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.