Home / 5,382.75-7,426.09-3,969.83

Finding the Fourth Proportional to 5,382.75, 7,426.09 and 3,969.83

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Solution

The fourth proportional to 5,382.75, 7,426.09 and 3,969.83 is: 5,476.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,382.75 : 7,426.09 = 3,969.83 : x
  2. Step 2: Convert to fraction form
    5,382.75/7,426.09 = 3,969.83/x
  3. Step 3: Cross multiply
    5,382.75x = 7,426.09 × 3,969.83
  4. Step 4: Simplify right side
    5,382.75x = 29,480,328.80
  5. Step 5: Solve for x
    x = 29,480,328.80/5,382.75
  6. Step 6: Final answer
    x = 5,476.81

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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.