Home / 3,900.66-5,382.09-2,329.26

Finding the Fourth Proportional to 3,900.66, 5,382.09 and 2,329.26

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Solution

The fourth proportional to 3,900.66, 5,382.09 and 2,329.26 is: 3,213.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,900.66 : 5,382.09 = 2,329.26 : x
  2. Step 2: Convert to fraction form
    3,900.66/5,382.09 = 2,329.26/x
  3. Step 3: Cross multiply
    3,900.66x = 5,382.09 × 2,329.26
  4. Step 4: Simplify right side
    3,900.66x = 12,536,286.95
  5. Step 5: Solve for x
    x = 12,536,286.95/3,900.66
  6. Step 6: Final answer
    x = 3,213.89

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.