Home / 1,975.81-2,726.56-1,091.59

Finding the Fourth Proportional to 1,975.81, 2,726.56 and 1,091.59

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Solution

The fourth proportional to 1,975.81, 2,726.56 and 1,091.59 is: 1,506.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,975.81 : 2,726.56 = 1,091.59 : x
  2. Step 2: Convert to fraction form
    1,975.81/2,726.56 = 1,091.59/x
  3. Step 3: Cross multiply
    1,975.81x = 2,726.56 × 1,091.59
  4. Step 4: Simplify right side
    1,975.81x = 2,976,266.54
  5. Step 5: Solve for x
    x = 2,976,266.54/1,975.81
  6. Step 6: Final answer
    x = 1,506.36

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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.