Home / 3,172.95-4,367.31-2,635.92

Finding the Fourth Proportional to 3,172.95, 4,367.31 and 2,635.92

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Solution

The fourth proportional to 3,172.95, 4,367.31 and 2,635.92 is: 3,628.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,172.95 : 4,367.31 = 2,635.92 : x
  2. Step 2: Convert to fraction form
    3,172.95/4,367.31 = 2,635.92/x
  3. Step 3: Cross multiply
    3,172.95x = 4,367.31 × 2,635.92
  4. Step 4: Simplify right side
    3,172.95x = 11,511,879.78
  5. Step 5: Solve for x
    x = 11,511,879.78/3,172.95
  6. Step 6: Final answer
    x = 3,628.13

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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.