Home / 3,366.43-5,049.45-1,391.20

Finding the Fourth Proportional to 3,366.43, 5,049.45 and 1,391.20

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Solution

The fourth proportional to 3,366.43, 5,049.45 and 1,391.20 is: 2,086.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,366.43 : 5,049.45 = 1,391.20 : x
  2. Step 2: Convert to fraction form
    3,366.43/5,049.45 = 1,391.20/x
  3. Step 3: Cross multiply
    3,366.43x = 5,049.45 × 1,391.20
  4. Step 4: Simplify right side
    3,366.43x = 7,024,782.22
  5. Step 5: Solve for x
    x = 7,024,782.22/3,366.43
  6. Step 6: Final answer
    x = 2,086.72

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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.