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Finding the Fourth Proportional to 2,202.28, 3,304.70 and 816.57

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Solution

The fourth proportional to 2,202.28, 3,304.70 and 816.57 is: 1,225.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,202.28 : 3,304.70 = 816.57 : x
  2. Step 2: Convert to fraction form
    2,202.28/3,304.70 = 816.57/x
  3. Step 3: Cross multiply
    2,202.28x = 3,304.70 × 816.57
  4. Step 4: Simplify right side
    2,202.28x = 2,698,518.88
  5. Step 5: Solve for x
    x = 2,698,518.88/2,202.28
  6. Step 6: Final answer
    x = 1,225.33

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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.