Home / 2,273.28-3,136.96-1,278.38

Finding the Fourth Proportional to 2,273.28, 3,136.96 and 1,278.38

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Solution

The fourth proportional to 2,273.28, 3,136.96 and 1,278.38 is: 1,764.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,273.28 : 3,136.96 = 1,278.38 : x
  2. Step 2: Convert to fraction form
    2,273.28/3,136.96 = 1,278.38/x
  3. Step 3: Cross multiply
    2,273.28x = 3,136.96 × 1,278.38
  4. Step 4: Simplify right side
    2,273.28x = 4,010,226.92
  5. Step 5: Solve for x
    x = 4,010,226.92/2,273.28
  6. Step 6: Final answer
    x = 1,764.07

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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.