Home / 2,412.06-3,634.31-2,181.21

Finding the Fourth Proportional to 2,412.06, 3,634.31 and 2,181.21

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Solution

The fourth proportional to 2,412.06, 3,634.31 and 2,181.21 is: 3,286.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,412.06 : 3,634.31 = 2,181.21 : x
  2. Step 2: Convert to fraction form
    2,412.06/3,634.31 = 2,181.21/x
  3. Step 3: Cross multiply
    2,412.06x = 3,634.31 × 2,181.21
  4. Step 4: Simplify right side
    2,412.06x = 7,927,182.41
  5. Step 5: Solve for x
    x = 7,927,182.41/2,412.06
  6. Step 6: Final answer
    x = 3,286.48

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.