Home / 2,273.38-3,136.94-1,278.62

Finding the Fourth Proportional to 2,273.38, 3,136.94 and 1,278.62

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Solution

The fourth proportional to 2,273.38, 3,136.94 and 1,278.62 is: 1,764.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,273.38 : 3,136.94 = 1,278.62 : x
  2. Step 2: Convert to fraction form
    2,273.38/3,136.94 = 1,278.62/x
  3. Step 3: Cross multiply
    2,273.38x = 3,136.94 × 1,278.62
  4. Step 4: Simplify right side
    2,273.38x = 4,010,954.22
  5. Step 5: Solve for x
    x = 4,010,954.22/2,273.38
  6. Step 6: Final answer
    x = 1,764.31

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Half scale
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Double scale
Find fourth proportional to 2,274.38, 3,138.32 and 1,279.62
Similar ratio
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1.5x scale

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.