Home / 2,628.80-3,628.24-1,634.48

Finding the Fourth Proportional to 2,628.80, 3,628.24 and 1,634.48

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Solution

The fourth proportional to 2,628.80, 3,628.24 and 1,634.48 is: 2,255.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,628.80 : 3,628.24 = 1,634.48 : x
  2. Step 2: Convert to fraction form
    2,628.80/3,628.24 = 1,634.48/x
  3. Step 3: Cross multiply
    2,628.80x = 3,628.24 × 1,634.48
  4. Step 4: Simplify right side
    2,628.80x = 5,930,285.72
  5. Step 5: Solve for x
    x = 5,930,285.72/2,628.80
  6. Step 6: Final answer
    x = 2,255.89

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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.