Home / 1,975.83-2,726.26-1,189.93

Finding the Fourth Proportional to 1,975.83, 2,726.26 and 1,189.93

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Solution

The fourth proportional to 1,975.83, 2,726.26 and 1,189.93 is: 1,641.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,975.83 : 2,726.26 = 1,189.93 : x
  2. Step 2: Convert to fraction form
    1,975.83/2,726.26 = 1,189.93/x
  3. Step 3: Cross multiply
    1,975.83x = 2,726.26 × 1,189.93
  4. Step 4: Simplify right side
    1,975.83x = 3,244,058.56
  5. Step 5: Solve for x
    x = 3,244,058.56/1,975.83
  6. Step 6: Final answer
    x = 1,641.87

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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.