Home / 2,180.38-3,268.16-948.36

Finding the Fourth Proportional to 2,180.38, 3,268.16 and 948.36

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Solution

The fourth proportional to 2,180.38, 3,268.16 and 948.36 is: 1,421.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,180.38 : 3,268.16 = 948.36 : x
  2. Step 2: Convert to fraction form
    2,180.38/3,268.16 = 948.36/x
  3. Step 3: Cross multiply
    2,180.38x = 3,268.16 × 948.36
  4. Step 4: Simplify right side
    2,180.38x = 3,099,392.22
  5. Step 5: Solve for x
    x = 3,099,392.22/2,180.38
  6. Step 6: Final answer
    x = 1,421.49

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.