Home / 3,457.30-5,181.85-1,993.43

Finding the Fourth Proportional to 3,457.30, 5,181.85 and 1,993.43

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Solution

The fourth proportional to 3,457.30, 5,181.85 and 1,993.43 is: 2,987.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,457.30 : 5,181.85 = 1,993.43 : x
  2. Step 2: Convert to fraction form
    3,457.30/5,181.85 = 1,993.43/x
  3. Step 3: Cross multiply
    3,457.30x = 5,181.85 × 1,993.43
  4. Step 4: Simplify right side
    3,457.30x = 10,329,655.25
  5. Step 5: Solve for x
    x = 10,329,655.25/3,457.30
  6. Step 6: Final answer
    x = 2,987.78

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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.