Home / 3,954.28-5,457.01-2,161.83

Finding the Fourth Proportional to 3,954.28, 5,457.01 and 2,161.83

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Solution

The fourth proportional to 3,954.28, 5,457.01 and 2,161.83 is: 2,983.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,954.28 : 5,457.01 = 2,161.83 : x
  2. Step 2: Convert to fraction form
    3,954.28/5,457.01 = 2,161.83/x
  3. Step 3: Cross multiply
    3,954.28x = 5,457.01 × 2,161.83
  4. Step 4: Simplify right side
    3,954.28x = 11,797,147.04
  5. Step 5: Solve for x
    x = 11,797,147.04/3,954.28
  6. Step 6: Final answer
    x = 2,983.39

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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.