Home / 1,939.27-2,908.90-1,159.49

Finding the Fourth Proportional to 1,939.27, 2,908.90 and 1,159.49

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Solution

The fourth proportional to 1,939.27, 2,908.90 and 1,159.49 is: 1,739.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,939.27 : 2,908.90 = 1,159.49 : x
  2. Step 2: Convert to fraction form
    1,939.27/2,908.90 = 1,159.49/x
  3. Step 3: Cross multiply
    1,939.27x = 2,908.90 × 1,159.49
  4. Step 4: Simplify right side
    1,939.27x = 3,372,848.57
  5. Step 5: Solve for x
    x = 3,372,848.57/1,939.27
  6. Step 6: Final answer
    x = 1,739.24

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.