Home / 2,180.51-3,009.14-1,185.81

Finding the Fourth Proportional to 2,180.51, 3,009.14 and 1,185.81

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Solution

The fourth proportional to 2,180.51, 3,009.14 and 1,185.81 is: 1,636.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,180.51 : 3,009.14 = 1,185.81 : x
  2. Step 2: Convert to fraction form
    2,180.51/3,009.14 = 1,185.81/x
  3. Step 3: Cross multiply
    2,180.51x = 3,009.14 × 1,185.81
  4. Step 4: Simplify right side
    2,180.51x = 3,568,268.30
  5. Step 5: Solve for x
    x = 3,568,268.30/2,180.51
  6. Step 6: Final answer
    x = 1,636.44

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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.