Home / 1,975.52-2,726.14-1,189.40

Finding the Fourth Proportional to 1,975.52, 2,726.14 and 1,189.40

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Solution

The fourth proportional to 1,975.52, 2,726.14 and 1,189.40 is: 1,641.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,975.52 : 2,726.14 = 1,189.40 : x
  2. Step 2: Convert to fraction form
    1,975.52/2,726.14 = 1,189.40/x
  3. Step 3: Cross multiply
    1,975.52x = 2,726.14 × 1,189.40
  4. Step 4: Simplify right side
    1,975.52x = 3,242,470.92
  5. Step 5: Solve for x
    x = 3,242,470.92/1,975.52
  6. Step 6: Final answer
    x = 1,641.33

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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.