Home / 3,720.96-5,581.44-1,414.08

Finding the Fourth Proportional to 3,720.96, 5,581.44 and 1,414.08

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Solution

The fourth proportional to 3,720.96, 5,581.44 and 1,414.08 is: 2,121.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,720.96 : 5,581.44 = 1,414.08 : x
  2. Step 2: Convert to fraction form
    3,720.96/5,581.44 = 1,414.08/x
  3. Step 3: Cross multiply
    3,720.96x = 5,581.44 × 1,414.08
  4. Step 4: Simplify right side
    3,720.96x = 7,892,602.68
  5. Step 5: Solve for x
    x = 7,892,602.68/3,720.96
  6. Step 6: Final answer
    x = 2,121.12

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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.