Home / 3,520.19-5,276.79-1,960.91

Finding the Fourth Proportional to 3,520.19, 5,276.79 and 1,960.91

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Solution

The fourth proportional to 3,520.19, 5,276.79 and 1,960.91 is: 2,939.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,520.19 : 5,276.79 = 1,960.91 : x
  2. Step 2: Convert to fraction form
    3,520.19/5,276.79 = 1,960.91/x
  3. Step 3: Cross multiply
    3,520.19x = 5,276.79 × 1,960.91
  4. Step 4: Simplify right side
    3,520.19x = 10,347,274.09
  5. Step 5: Solve for x
    x = 10,347,274.09/3,520.19
  6. Step 6: Final answer
    x = 2,939.41

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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.