Home / 3,965.69-5,474.86-2,708.63

Finding the Fourth Proportional to 3,965.69, 5,474.86 and 2,708.63

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Solution

The fourth proportional to 3,965.69, 5,474.86 and 2,708.63 is: 3,739.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,965.69 : 5,474.86 = 2,708.63 : x
  2. Step 2: Convert to fraction form
    3,965.69/5,474.86 = 2,708.63/x
  3. Step 3: Cross multiply
    3,965.69x = 5,474.86 × 2,708.63
  4. Step 4: Simplify right side
    3,965.69x = 14,829,335.90
  5. Step 5: Solve for x
    x = 14,829,335.90/3,965.69
  6. Step 6: Final answer
    x = 3,739.41

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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.