Home / 1,939.22-2,676.14-1,055.03

Finding the Fourth Proportional to 1,939.22, 2,676.14 and 1,055.03

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Solution

The fourth proportional to 1,939.22, 2,676.14 and 1,055.03 is: 1,455.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,939.22 : 2,676.14 = 1,055.03 : x
  2. Step 2: Convert to fraction form
    1,939.22/2,676.14 = 1,055.03/x
  3. Step 3: Cross multiply
    1,939.22x = 2,676.14 × 1,055.03
  4. Step 4: Simplify right side
    1,939.22x = 2,823,415.86
  5. Step 5: Solve for x
    x = 2,823,415.86/1,939.22
  6. Step 6: Final answer
    x = 1,455.95

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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.