Home / 2,053.06-3,081.65-1,081.21

Finding the Fourth Proportional to 2,053.06, 3,081.65 and 1,081.21

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Solution

The fourth proportional to 2,053.06, 3,081.65 and 1,081.21 is: 1,622.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,053.06 : 3,081.65 = 1,081.21 : x
  2. Step 2: Convert to fraction form
    2,053.06/3,081.65 = 1,081.21/x
  3. Step 3: Cross multiply
    2,053.06x = 3,081.65 × 1,081.21
  4. Step 4: Simplify right side
    2,053.06x = 3,331,910.80
  5. Step 5: Solve for x
    x = 3,331,910.80/2,053.06
  6. Step 6: Final answer
    x = 1,622.90

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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.