Home / 1,941.96-2,912.92-481.08

Finding the Fourth Proportional to 1,941.96, 2,912.92 and 481.08

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Solution

The fourth proportional to 1,941.96, 2,912.92 and 481.08 is: 721.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,941.96 : 2,912.92 = 481.08 : x
  2. Step 2: Convert to fraction form
    1,941.96/2,912.92 = 481.08/x
  3. Step 3: Cross multiply
    1,941.96x = 2,912.92 × 481.08
  4. Step 4: Simplify right side
    1,941.96x = 1,401,347.55
  5. Step 5: Solve for x
    x = 1,401,347.55/1,941.96
  6. Step 6: Final answer
    x = 721.62

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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.