Home / 3,421.38-5,132.74-1,081.96

Finding the Fourth Proportional to 3,421.38, 5,132.74 and 1,081.96

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Solution

The fourth proportional to 3,421.38, 5,132.74 and 1,081.96 is: 1,623.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,421.38 : 5,132.74 = 1,081.96 : x
  2. Step 2: Convert to fraction form
    3,421.38/5,132.74 = 1,081.96/x
  3. Step 3: Cross multiply
    3,421.38x = 5,132.74 × 1,081.96
  4. Step 4: Simplify right side
    3,421.38x = 5,553,419.37
  5. Step 5: Solve for x
    x = 5,553,419.37/3,421.38
  6. Step 6: Final answer
    x = 1,623.15

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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.