Home / 3,220.80-4,450.08-3,025.92

Finding the Fourth Proportional to 3,220.80, 4,450.08 and 3,025.92

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Solution

The fourth proportional to 3,220.80, 4,450.08 and 3,025.92 is: 4,180.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,220.80 : 4,450.08 = 3,025.92 : x
  2. Step 2: Convert to fraction form
    3,220.80/4,450.08 = 3,025.92/x
  3. Step 3: Cross multiply
    3,220.80x = 4,450.08 × 3,025.92
  4. Step 4: Simplify right side
    3,220.80x = 13,465,586.07
  5. Step 5: Solve for x
    x = 13,465,586.07/3,220.80
  6. Step 6: Final answer
    x = 4,180.82

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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.