Home / 3,961.36-5,943.26-3,140.02

Finding the Fourth Proportional to 3,961.36, 5,943.26 and 3,140.02

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Solution

The fourth proportional to 3,961.36, 5,943.26 and 3,140.02 is: 4,711.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,961.36 : 5,943.26 = 3,140.02 : x
  2. Step 2: Convert to fraction form
    3,961.36/5,943.26 = 3,140.02/x
  3. Step 3: Cross multiply
    3,961.36x = 5,943.26 × 3,140.02
  4. Step 4: Simplify right side
    3,961.36x = 18,661,955.27
  5. Step 5: Solve for x
    x = 18,661,955.27/3,961.36
  6. Step 6: Final answer
    x = 4,711.00

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.