Home / 3,678.64-5,080.92-2,682.32

Finding the Fourth Proportional to 3,678.64, 5,080.92 and 2,682.32

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Solution

The fourth proportional to 3,678.64, 5,080.92 and 2,682.32 is: 3,704.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,678.64 : 5,080.92 = 2,682.32 : x
  2. Step 2: Convert to fraction form
    3,678.64/5,080.92 = 2,682.32/x
  3. Step 3: Cross multiply
    3,678.64x = 5,080.92 × 2,682.32
  4. Step 4: Simplify right side
    3,678.64x = 13,628,653.33
  5. Step 5: Solve for x
    x = 13,628,653.33/3,678.64
  6. Step 6: Final answer
    x = 3,704.81

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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.