Home / 3,208.50-4,812.94-900.18

Finding the Fourth Proportional to 3,208.50, 4,812.94 and 900.18

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Solution

The fourth proportional to 3,208.50, 4,812.94 and 900.18 is: 1,350.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,208.50 : 4,812.94 = 900.18 : x
  2. Step 2: Convert to fraction form
    3,208.50/4,812.94 = 900.18/x
  3. Step 3: Cross multiply
    3,208.50x = 4,812.94 × 900.18
  4. Step 4: Simplify right side
    3,208.50x = 4,332,512.33
  5. Step 5: Solve for x
    x = 4,332,512.33/3,208.50
  6. Step 6: Final answer
    x = 1,350.32

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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.