Home / 3,228.50-4,453.25-1,986.58

Finding the Fourth Proportional to 3,228.50, 4,453.25 and 1,986.58

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Solution

The fourth proportional to 3,228.50, 4,453.25 and 1,986.58 is: 2,740.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,228.50 : 4,453.25 = 1,986.58 : x
  2. Step 2: Convert to fraction form
    3,228.50/4,453.25 = 1,986.58/x
  3. Step 3: Cross multiply
    3,228.50x = 4,453.25 × 1,986.58
  4. Step 4: Simplify right side
    3,228.50x = 8,846,737.39
  5. Step 5: Solve for x
    x = 8,846,737.39/3,228.50
  6. Step 6: Final answer
    x = 2,740.20

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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.