Home / 2,280.44-3,145.82-1,396.46

Finding the Fourth Proportional to 2,280.44, 3,145.82 and 1,396.46

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Solution

The fourth proportional to 2,280.44, 3,145.82 and 1,396.46 is: 1,926.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,280.44 : 3,145.82 = 1,396.46 : x
  2. Step 2: Convert to fraction form
    2,280.44/3,145.82 = 1,396.46/x
  3. Step 3: Cross multiply
    2,280.44x = 3,145.82 × 1,396.46
  4. Step 4: Simplify right side
    2,280.44x = 4,392,989.09
  5. Step 5: Solve for x
    x = 4,392,989.09/2,280.44
  6. Step 6: Final answer
    x = 1,926.38

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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.