Home / 6,120.64-9,180.72-1,960.87

Finding the Fourth Proportional to 6,120.64, 9,180.72 and 1,960.87

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Solution

The fourth proportional to 6,120.64, 9,180.72 and 1,960.87 is: 2,941.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,120.64 : 9,180.72 = 1,960.87 : x
  2. Step 2: Convert to fraction form
    6,120.64/9,180.72 = 1,960.87/x
  3. Step 3: Cross multiply
    6,120.64x = 9,180.72 × 1,960.87
  4. Step 4: Simplify right side
    6,120.64x = 18,002,198.43
  5. Step 5: Solve for x
    x = 18,002,198.43/6,120.64
  6. Step 6: Final answer
    x = 2,941.23

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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.