Home / 3,669.71-5,063.48-2,178.09

Finding the Fourth Proportional to 3,669.71, 5,063.48 and 2,178.09

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Solution

The fourth proportional to 3,669.71, 5,063.48 and 2,178.09 is: 3,005.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,669.71 : 5,063.48 = 2,178.09 : x
  2. Step 2: Convert to fraction form
    3,669.71/5,063.48 = 2,178.09/x
  3. Step 3: Cross multiply
    3,669.71x = 5,063.48 × 2,178.09
  4. Step 4: Simplify right side
    3,669.71x = 11,028,716.92
  5. Step 5: Solve for x
    x = 11,028,716.92/3,669.71
  6. Step 6: Final answer
    x = 3,005.34

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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.