Home / 2,828.21-3,902.94-1,569.35

Finding the Fourth Proportional to 2,828.21, 3,902.94 and 1,569.35

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Solution

The fourth proportional to 2,828.21, 3,902.94 and 1,569.35 is: 2,165.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,828.21 : 3,902.94 = 1,569.35 : x
  2. Step 2: Convert to fraction form
    2,828.21/3,902.94 = 1,569.35/x
  3. Step 3: Cross multiply
    2,828.21x = 3,902.94 × 1,569.35
  4. Step 4: Simplify right side
    2,828.21x = 6,125,059.37
  5. Step 5: Solve for x
    x = 6,125,059.37/2,828.21
  6. Step 6: Final answer
    x = 2,165.71

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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.