Home / 2,179.51-3,005.73-1,621.37

Finding the Fourth Proportional to 2,179.51, 3,005.73 and 1,621.37

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Solution

The fourth proportional to 2,179.51, 3,005.73 and 1,621.37 is: 2,236.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,179.51 : 3,005.73 = 1,621.37 : x
  2. Step 2: Convert to fraction form
    2,179.51/3,005.73 = 1,621.37/x
  3. Step 3: Cross multiply
    2,179.51x = 3,005.73 × 1,621.37
  4. Step 4: Simplify right side
    2,179.51x = 4,873,407.96
  5. Step 5: Solve for x
    x = 4,873,407.96/2,179.51
  6. Step 6: Final answer
    x = 2,236.01

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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.