Home / 3,228.57-4,839.59-2,188.68

Finding the Fourth Proportional to 3,228.57, 4,839.59 and 2,188.68

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Solution

The fourth proportional to 3,228.57, 4,839.59 and 2,188.68 is: 3,280.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,228.57 : 4,839.59 = 2,188.68 : x
  2. Step 2: Convert to fraction form
    3,228.57/4,839.59 = 2,188.68/x
  3. Step 3: Cross multiply
    3,228.57x = 4,839.59 × 2,188.68
  4. Step 4: Simplify right side
    3,228.57x = 10,592,313.84
  5. Step 5: Solve for x
    x = 10,592,313.84/3,228.57
  6. Step 6: Final answer
    x = 3,280.81

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.