Home / 1,975.91-2,726.93-1,091.70

Finding the Fourth Proportional to 1,975.91, 2,726.93 and 1,091.70

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Solution

The fourth proportional to 1,975.91, 2,726.93 and 1,091.70 is: 1,506.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,975.91 : 2,726.93 = 1,091.70 : x
  2. Step 2: Convert to fraction form
    1,975.91/2,726.93 = 1,091.70/x
  3. Step 3: Cross multiply
    1,975.91x = 2,726.93 × 1,091.70
  4. Step 4: Simplify right side
    1,975.91x = 2,976,984.02
  5. Step 5: Solve for x
    x = 2,976,984.02/1,975.91
  6. Step 6: Final answer
    x = 1,506.64

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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.