Home / 6,939.40-9,576.99-3,954.61

Finding the Fourth Proportional to 6,939.40, 9,576.99 and 3,954.61

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Solution

The fourth proportional to 6,939.40, 9,576.99 and 3,954.61 is: 5,457.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,939.40 : 9,576.99 = 3,954.61 : x
  2. Step 2: Convert to fraction form
    6,939.40/9,576.99 = 3,954.61/x
  3. Step 3: Cross multiply
    6,939.40x = 9,576.99 × 3,954.61
  4. Step 4: Simplify right side
    6,939.40x = 37,873,260.42
  5. Step 5: Solve for x
    x = 37,873,260.42/6,939.40
  6. Step 6: Final answer
    x = 5,457.71

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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.