Home / 1,975.78-2,726.54-1,091.57

Finding the Fourth Proportional to 1,975.78, 2,726.54 and 1,091.57

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Solution

The fourth proportional to 1,975.78, 2,726.54 and 1,091.57 is: 1,506.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,975.78 : 2,726.54 = 1,091.57 : x
  2. Step 2: Convert to fraction form
    1,975.78/2,726.54 = 1,091.57/x
  3. Step 3: Cross multiply
    1,975.78x = 2,726.54 × 1,091.57
  4. Step 4: Simplify right side
    1,975.78x = 2,976,209.27
  5. Step 5: Solve for x
    x = 2,976,209.27/1,975.78
  6. Step 6: Final answer
    x = 1,506.35

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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.