Home / 3,416.88-5,125.29-1,108.38

Finding the Fourth Proportional to 3,416.88, 5,125.29 and 1,108.38

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Solution

The fourth proportional to 3,416.88, 5,125.29 and 1,108.38 is: 1,662.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,416.88 : 5,125.29 = 1,108.38 : x
  2. Step 2: Convert to fraction form
    3,416.88/5,125.29 = 1,108.38/x
  3. Step 3: Cross multiply
    3,416.88x = 5,125.29 × 1,108.38
  4. Step 4: Simplify right side
    3,416.88x = 5,680,768.93
  5. Step 5: Solve for x
    x = 5,680,768.93/3,416.88
  6. Step 6: Final answer
    x = 1,662.56

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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.