Home / 4,891.90-7,334.66-3,220.97

Finding the Fourth Proportional to 4,891.90, 7,334.66 and 3,220.97

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Solution

The fourth proportional to 4,891.90, 7,334.66 and 3,220.97 is: 4,829.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,891.90 : 7,334.66 = 3,220.97 : x
  2. Step 2: Convert to fraction form
    4,891.90/7,334.66 = 3,220.97/x
  3. Step 3: Cross multiply
    4,891.90x = 7,334.66 × 3,220.97
  4. Step 4: Simplify right side
    4,891.90x = 23,624,723.85
  5. Step 5: Solve for x
    x = 23,624,723.85/4,891.90
  6. Step 6: Final answer
    x = 4,829.35

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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.