Home / 1,910.27-2,636.40-1,249.04

Finding the Fourth Proportional to 1,910.27, 2,636.40 and 1,249.04

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Solution

The fourth proportional to 1,910.27, 2,636.40 and 1,249.04 is: 1,723.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,910.27 : 2,636.40 = 1,249.04 : x
  2. Step 2: Convert to fraction form
    1,910.27/2,636.40 = 1,249.04/x
  3. Step 3: Cross multiply
    1,910.27x = 2,636.40 × 1,249.04
  4. Step 4: Simplify right side
    1,910.27x = 3,292,955.87
  5. Step 5: Solve for x
    x = 3,292,955.87/1,910.27
  6. Step 6: Final answer
    x = 1,723.82

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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.