Home / 3,219.51-4,829.26-911.01

Finding the Fourth Proportional to 3,219.51, 4,829.26 and 911.01

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Solution

The fourth proportional to 3,219.51, 4,829.26 and 911.01 is: 1,366.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,219.51 : 4,829.26 = 911.01 : x
  2. Step 2: Convert to fraction form
    3,219.51/4,829.26 = 911.01/x
  3. Step 3: Cross multiply
    3,219.51x = 4,829.26 × 911.01
  4. Step 4: Simplify right side
    3,219.51x = 4,399,504.15
  5. Step 5: Solve for x
    x = 4,399,504.15/3,219.51
  6. Step 6: Final answer
    x = 1,366.51

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Similar ratio
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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.