Home / 2,428.25-3,346.31-1,728.41

Finding the Fourth Proportional to 2,428.25, 3,346.31 and 1,728.41

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Solution

The fourth proportional to 2,428.25, 3,346.31 and 1,728.41 is: 2,381.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,428.25 : 3,346.31 = 1,728.41 : x
  2. Step 2: Convert to fraction form
    2,428.25/3,346.31 = 1,728.41/x
  3. Step 3: Cross multiply
    2,428.25x = 3,346.31 × 1,728.41
  4. Step 4: Simplify right side
    2,428.25x = 5,783,783.26
  5. Step 5: Solve for x
    x = 5,783,783.26/2,428.25
  6. Step 6: Final answer
    x = 2,381.88

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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.