Home / 1,939.23-2,676.17-1,055.06

Finding the Fourth Proportional to 1,939.23, 2,676.17 and 1,055.06

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Solution

The fourth proportional to 1,939.23, 2,676.17 and 1,055.06 is: 1,455.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,939.23 : 2,676.17 = 1,055.06 : x
  2. Step 2: Convert to fraction form
    1,939.23/2,676.17 = 1,055.06/x
  3. Step 3: Cross multiply
    1,939.23x = 2,676.17 × 1,055.06
  4. Step 4: Simplify right side
    1,939.23x = 2,823,501.26
  5. Step 5: Solve for x
    x = 2,823,501.26/1,939.23
  6. Step 6: Final answer
    x = 1,455.99

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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.