Home / 1,975.42-2,726.04-1,091.20

Finding the Fourth Proportional to 1,975.42, 2,726.04 and 1,091.20

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Solution

The fourth proportional to 1,975.42, 2,726.04 and 1,091.20 is: 1,505.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,975.42 : 2,726.04 = 1,091.20 : x
  2. Step 2: Convert to fraction form
    1,975.42/2,726.04 = 1,091.20/x
  3. Step 3: Cross multiply
    1,975.42x = 2,726.04 × 1,091.20
  4. Step 4: Simplify right side
    1,975.42x = 2,974,654.85
  5. Step 5: Solve for x
    x = 2,974,654.85/1,975.42
  6. Step 6: Final answer
    x = 1,505.83

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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.