Home / 3,966.39-5,947.77-2,117.07

Finding the Fourth Proportional to 3,966.39, 5,947.77 and 2,117.07

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Solution

The fourth proportional to 3,966.39, 5,947.77 and 2,117.07 is: 3,174.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,966.39 : 5,947.77 = 2,117.07 : x
  2. Step 2: Convert to fraction form
    3,966.39/5,947.77 = 2,117.07/x
  3. Step 3: Cross multiply
    3,966.39x = 5,947.77 × 2,117.07
  4. Step 4: Simplify right side
    3,966.39x = 12,591,845.43
  5. Step 5: Solve for x
    x = 12,591,845.43/3,966.39
  6. Step 6: Final answer
    x = 3,174.64

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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.