Home / 1,629.08-2,245.92-1,187

Finding the Fourth Proportional to 1,629.08, 2,245.92 and 1,187

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Solution

The fourth proportional to 1,629.08, 2,245.92 and 1,187 is: 1,636.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,629.08 : 2,245.92 = 1,187 : x
  2. Step 2: Convert to fraction form
    1,629.08/2,245.92 = 1,187/x
  3. Step 3: Cross multiply
    1,629.08x = 2,245.92 × 1,187
  4. Step 4: Simplify right side
    1,629.08x = 2,665,907.04
  5. Step 5: Solve for x
    x = 2,665,907.04/1,629.08
  6. Step 6: Final answer
    x = 1,636.45

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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.