Home / 1,821.56-2,728.28-1,584.26

Finding the Fourth Proportional to 1,821.56, 2,728.28 and 1,584.26

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Solution

The fourth proportional to 1,821.56, 2,728.28 and 1,584.26 is: 2,372.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,821.56 : 2,728.28 = 1,584.26 : x
  2. Step 2: Convert to fraction form
    1,821.56/2,728.28 = 1,584.26/x
  3. Step 3: Cross multiply
    1,821.56x = 2,728.28 × 1,584.26
  4. Step 4: Simplify right side
    1,821.56x = 4,322,296.95
  5. Step 5: Solve for x
    x = 4,322,296.95/1,821.56
  6. Step 6: Final answer
    x = 2,372.85

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.