Home / 2,069.75-3,105.08-1,146.66

Finding the Fourth Proportional to 2,069.75, 3,105.08 and 1,146.66

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Solution

The fourth proportional to 2,069.75, 3,105.08 and 1,146.66 is: 1,720.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,069.75 : 3,105.08 = 1,146.66 : x
  2. Step 2: Convert to fraction form
    2,069.75/3,105.08 = 1,146.66/x
  3. Step 3: Cross multiply
    2,069.75x = 3,105.08 × 1,146.66
  4. Step 4: Simplify right side
    2,069.75x = 3,560,471.03
  5. Step 5: Solve for x
    x = 3,560,471.03/2,069.75
  6. Step 6: Final answer
    x = 1,720.24

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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.