Home / 3,169.78-4,376.44-1,975.24

Finding the Fourth Proportional to 3,169.78, 4,376.44 and 1,975.24

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Solution

The fourth proportional to 3,169.78, 4,376.44 and 1,975.24 is: 2,727.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,169.78 : 4,376.44 = 1,975.24 : x
  2. Step 2: Convert to fraction form
    3,169.78/4,376.44 = 1,975.24/x
  3. Step 3: Cross multiply
    3,169.78x = 4,376.44 × 1,975.24
  4. Step 4: Simplify right side
    3,169.78x = 8,644,503.47
  5. Step 5: Solve for x
    x = 8,644,503.47/3,169.78
  6. Step 6: Final answer
    x = 2,727.16

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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.