Home / 3,322.58-4,985.31-1,781.78

Finding the Fourth Proportional to 3,322.58, 4,985.31 and 1,781.78

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Solution

The fourth proportional to 3,322.58, 4,985.31 and 1,781.78 is: 2,673.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,322.58 : 4,985.31 = 1,781.78 : x
  2. Step 2: Convert to fraction form
    3,322.58/4,985.31 = 1,781.78/x
  3. Step 3: Cross multiply
    3,322.58x = 4,985.31 × 1,781.78
  4. Step 4: Simplify right side
    3,322.58x = 8,882,725.65
  5. Step 5: Solve for x
    x = 8,882,725.65/3,322.58
  6. Step 6: Final answer
    x = 2,673.44

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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.