Home / 3,699.46-5,105.41-2,127.56

Finding the Fourth Proportional to 3,699.46, 5,105.41 and 2,127.56

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Solution

The fourth proportional to 3,699.46, 5,105.41 and 2,127.56 is: 2,936.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,699.46 : 5,105.41 = 2,127.56 : x
  2. Step 2: Convert to fraction form
    3,699.46/5,105.41 = 2,127.56/x
  3. Step 3: Cross multiply
    3,699.46x = 5,105.41 × 2,127.56
  4. Step 4: Simplify right side
    3,699.46x = 10,862,040.57
  5. Step 5: Solve for x
    x = 10,862,040.57/3,699.46
  6. Step 6: Final answer
    x = 2,936.12

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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.