Home / 3,949.51-5,450.37-2,181.08

Finding the Fourth Proportional to 3,949.51, 5,450.37 and 2,181.08

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Solution

The fourth proportional to 3,949.51, 5,450.37 and 2,181.08 is: 3,009.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,949.51 : 5,450.37 = 2,181.08 : x
  2. Step 2: Convert to fraction form
    3,949.51/5,450.37 = 2,181.08/x
  3. Step 3: Cross multiply
    3,949.51x = 5,450.37 × 2,181.08
  4. Step 4: Simplify right side
    3,949.51x = 11,887,693.00
  5. Step 5: Solve for x
    x = 11,887,693.00/3,949.51
  6. Step 6: Final answer
    x = 3,009.92

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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.