Home / 3,620.88-5,431.68-3,373.92

Finding the Fourth Proportional to 3,620.88, 5,431.68 and 3,373.92

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Solution

The fourth proportional to 3,620.88, 5,431.68 and 3,373.92 is: 5,061.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,620.88 : 5,431.68 = 3,373.92 : x
  2. Step 2: Convert to fraction form
    3,620.88/5,431.68 = 3,373.92/x
  3. Step 3: Cross multiply
    3,620.88x = 5,431.68 × 3,373.92
  4. Step 4: Simplify right side
    3,620.88x = 18,326,053.79
  5. Step 5: Solve for x
    x = 18,326,053.79/3,620.88
  6. Step 6: Final answer
    x = 5,061.22

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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.