Home / 3,965.82-5,470.36-2,551.35

Finding the Fourth Proportional to 3,965.82, 5,470.36 and 2,551.35

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Solution

The fourth proportional to 3,965.82, 5,470.36 and 2,551.35 is: 3,519.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,965.82 : 5,470.36 = 2,551.35 : x
  2. Step 2: Convert to fraction form
    3,965.82/5,470.36 = 2,551.35/x
  3. Step 3: Cross multiply
    3,965.82x = 5,470.36 × 2,551.35
  4. Step 4: Simplify right side
    3,965.82x = 13,956,796.61
  5. Step 5: Solve for x
    x = 13,956,796.61/3,965.82
  6. Step 6: Final answer
    x = 3,519.27

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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.