Home / 3,933.70-5,428.49-2,165.27

Finding the Fourth Proportional to 3,933.70, 5,428.49 and 2,165.27

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Solution

The fourth proportional to 3,933.70, 5,428.49 and 2,165.27 is: 2,988.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,933.70 : 5,428.49 = 2,165.27 : x
  2. Step 2: Convert to fraction form
    3,933.70/5,428.49 = 2,165.27/x
  3. Step 3: Cross multiply
    3,933.70x = 5,428.49 × 2,165.27
  4. Step 4: Simplify right side
    3,933.70x = 11,754,108.57
  5. Step 5: Solve for x
    x = 11,754,108.57/3,933.70
  6. Step 6: Final answer
    x = 2,988.06

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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.