Home / 2,828.20-3,902.70-1,569.10

Finding the Fourth Proportional to 2,828.20, 3,902.70 and 1,569.10

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Solution

The fourth proportional to 2,828.20, 3,902.70 and 1,569.10 is: 2,165.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,828.20 : 3,902.70 = 1,569.10 : x
  2. Step 2: Convert to fraction form
    2,828.20/3,902.70 = 1,569.10/x
  3. Step 3: Cross multiply
    2,828.20x = 3,902.70 × 1,569.10
  4. Step 4: Simplify right side
    2,828.20x = 6,123,726.57
  5. Step 5: Solve for x
    x = 6,123,726.57/2,828.20
  6. Step 6: Final answer
    x = 2,165.24

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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.