Home / 3,280.30-4,525.85-2,021.56

Finding the Fourth Proportional to 3,280.30, 4,525.85 and 2,021.56

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Solution

The fourth proportional to 3,280.30, 4,525.85 and 2,021.56 is: 2,789.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,280.30 : 4,525.85 = 2,021.56 : x
  2. Step 2: Convert to fraction form
    3,280.30/4,525.85 = 2,021.56/x
  3. Step 3: Cross multiply
    3,280.30x = 4,525.85 × 2,021.56
  4. Step 4: Simplify right side
    3,280.30x = 9,149,277.33
  5. Step 5: Solve for x
    x = 9,149,277.33/3,280.30
  6. Step 6: Final answer
    x = 2,789.16

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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.