Home / 2,428.44-3,351.36-1,380.84

Finding the Fourth Proportional to 2,428.44, 3,351.36 and 1,380.84

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Solution

The fourth proportional to 2,428.44, 3,351.36 and 1,380.84 is: 1,905.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,428.44 : 3,351.36 = 1,380.84 : x
  2. Step 2: Convert to fraction form
    2,428.44/3,351.36 = 1,380.84/x
  3. Step 3: Cross multiply
    2,428.44x = 3,351.36 × 1,380.84
  4. Step 4: Simplify right side
    2,428.44x = 4,627,691.94
  5. Step 5: Solve for x
    x = 4,627,691.94/2,428.44
  6. Step 6: Final answer
    x = 1,905.62

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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.