Home / 6,272.31-9,409.12-2,112.78

Finding the Fourth Proportional to 6,272.31, 9,409.12 and 2,112.78

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Solution

The fourth proportional to 6,272.31, 9,409.12 and 2,112.78 is: 3,169.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,272.31 : 9,409.12 = 2,112.78 : x
  2. Step 2: Convert to fraction form
    6,272.31/9,409.12 = 2,112.78/x
  3. Step 3: Cross multiply
    6,272.31x = 9,409.12 × 2,112.78
  4. Step 4: Simplify right side
    6,272.31x = 19,879,379.55
  5. Step 5: Solve for x
    x = 19,879,379.55/6,272.31
  6. Step 6: Final answer
    x = 3,169.39

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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.