Home / 2,049.12-2,828.37-1,209.96

Finding the Fourth Proportional to 2,049.12, 2,828.37 and 1,209.96

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Solution

The fourth proportional to 2,049.12, 2,828.37 and 1,209.96 is: 1,670.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,049.12 : 2,828.37 = 1,209.96 : x
  2. Step 2: Convert to fraction form
    2,049.12/2,828.37 = 1,209.96/x
  3. Step 3: Cross multiply
    2,049.12x = 2,828.37 × 1,209.96
  4. Step 4: Simplify right side
    2,049.12x = 3,422,214.57
  5. Step 5: Solve for x
    x = 3,422,214.57/2,049.12
  6. Step 6: Final answer
    x = 1,670.09

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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.