Home / 1,629.12-2,247.96-1,008

Finding the Fourth Proportional to 1,629.12, 2,247.96 and 1,008

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Solution

The fourth proportional to 1,629.12, 2,247.96 and 1,008 is: 1,390.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,629.12 : 2,247.96 = 1,008 : x
  2. Step 2: Convert to fraction form
    1,629.12/2,247.96 = 1,008/x
  3. Step 3: Cross multiply
    1,629.12x = 2,247.96 × 1,008
  4. Step 4: Simplify right side
    1,629.12x = 2,265,943.68
  5. Step 5: Solve for x
    x = 2,265,943.68/1,629.12
  6. Step 6: Final answer
    x = 1,390.90

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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.