Home / 1,939.44-2,676.42-1,055.28

Finding the Fourth Proportional to 1,939.44, 2,676.42 and 1,055.28

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Solution

The fourth proportional to 1,939.44, 2,676.42 and 1,055.28 is: 1,456.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,939.44 : 2,676.42 = 1,055.28 : x
  2. Step 2: Convert to fraction form
    1,939.44/2,676.42 = 1,055.28/x
  3. Step 3: Cross multiply
    1,939.44x = 2,676.42 × 1,055.28
  4. Step 4: Simplify right side
    1,939.44x = 2,824,372.50
  5. Step 5: Solve for x
    x = 2,824,372.50/1,939.44
  6. Step 6: Final answer
    x = 1,456.28

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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.