Home / 2,205.18-3,043.30-1,273.68

Finding the Fourth Proportional to 2,205.18, 3,043.30 and 1,273.68

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Solution

The fourth proportional to 2,205.18, 3,043.30 and 1,273.68 is: 1,757.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,205.18 : 3,043.30 = 1,273.68 : x
  2. Step 2: Convert to fraction form
    2,205.18/3,043.30 = 1,273.68/x
  3. Step 3: Cross multiply
    2,205.18x = 3,043.30 × 1,273.68
  4. Step 4: Simplify right side
    2,205.18x = 3,876,190.34
  5. Step 5: Solve for x
    x = 3,876,190.34/2,205.18
  6. Step 6: Final answer
    x = 1,757.77

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1.5x scale

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.