Home / 1,629.50-2,249.06-1,039.90

Finding the Fourth Proportional to 1,629.50, 2,249.06 and 1,039.90

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Solution

The fourth proportional to 1,629.50, 2,249.06 and 1,039.90 is: 1,435.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,629.50 : 2,249.06 = 1,039.90 : x
  2. Step 2: Convert to fraction form
    1,629.50/2,249.06 = 1,039.90/x
  3. Step 3: Cross multiply
    1,629.50x = 2,249.06 × 1,039.90
  4. Step 4: Simplify right side
    1,629.50x = 2,338,797.49
  5. Step 5: Solve for x
    x = 2,338,797.49/1,629.50
  6. Step 6: Final answer
    x = 1,435.29

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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.