Home / 2,169.10-2,993.75-1,284.85

Finding the Fourth Proportional to 2,169.10, 2,993.75 and 1,284.85

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Solution

The fourth proportional to 2,169.10, 2,993.75 and 1,284.85 is: 1,773.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,169.10 : 2,993.75 = 1,284.85 : x
  2. Step 2: Convert to fraction form
    2,169.10/2,993.75 = 1,284.85/x
  3. Step 3: Cross multiply
    2,169.10x = 2,993.75 × 1,284.85
  4. Step 4: Simplify right side
    2,169.10x = 3,846,519.69
  5. Step 5: Solve for x
    x = 3,846,519.69/2,169.10
  6. Step 6: Final answer
    x = 1,773.33

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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.