Home / 1,975.62-2,726.16-1,091.31

Finding the Fourth Proportional to 1,975.62, 2,726.16 and 1,091.31

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Solution

The fourth proportional to 1,975.62, 2,726.16 and 1,091.31 is: 1,505.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,975.62 : 2,726.16 = 1,091.31 : x
  2. Step 2: Convert to fraction form
    1,975.62/2,726.16 = 1,091.31/x
  3. Step 3: Cross multiply
    1,975.62x = 2,726.16 × 1,091.31
  4. Step 4: Simplify right side
    1,975.62x = 2,975,071.35
  5. Step 5: Solve for x
    x = 2,975,071.35/1,975.62
  6. Step 6: Final answer
    x = 1,505.89

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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.