Home / 2,828.05-3,902.70-1,569.30

Finding the Fourth Proportional to 2,828.05, 3,902.70 and 1,569.30

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Solution

The fourth proportional to 2,828.05, 3,902.70 and 1,569.30 is: 2,165.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,828.05 : 3,902.70 = 1,569.30 : x
  2. Step 2: Convert to fraction form
    2,828.05/3,902.70 = 1,569.30/x
  3. Step 3: Cross multiply
    2,828.05x = 3,902.70 × 1,569.30
  4. Step 4: Simplify right side
    2,828.05x = 6,124,487.60
  5. Step 5: Solve for x
    x = 6,124,487.60/2,828.05
  6. Step 6: Final answer
    x = 2,165.62

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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.