Home / 2,828.50-3,903.78-2,229.64

Finding the Fourth Proportional to 2,828.50, 3,903.78 and 2,229.64

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Solution

The fourth proportional to 2,828.50, 3,903.78 and 2,229.64 is: 3,077.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,828.50 : 3,903.78 = 2,229.64 : x
  2. Step 2: Convert to fraction form
    2,828.50/3,903.78 = 2,229.64/x
  3. Step 3: Cross multiply
    2,828.50x = 3,903.78 × 2,229.64
  4. Step 4: Simplify right side
    2,828.50x = 8,704,024.04
  5. Step 5: Solve for x
    x = 8,704,024.04/2,828.50
  6. Step 6: Final answer
    x = 3,077.26

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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.