Home / 2,828.88-3,890.16-2,262.24

Finding the Fourth Proportional to 2,828.88, 3,890.16 and 2,262.24

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Solution

The fourth proportional to 2,828.88, 3,890.16 and 2,262.24 is: 3,110.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,828.88 : 3,890.16 = 2,262.24 : x
  2. Step 2: Convert to fraction form
    2,828.88/3,890.16 = 2,262.24/x
  3. Step 3: Cross multiply
    2,828.88x = 3,890.16 × 2,262.24
  4. Step 4: Simplify right side
    2,828.88x = 8,800,475.56
  5. Step 5: Solve for x
    x = 8,800,475.56/2,828.88
  6. Step 6: Final answer
    x = 3,110.94

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1.5x scale

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.