Home / 5,455.29-8,177.43-3,811.38

Finding the Fourth Proportional to 5,455.29, 8,177.43 and 3,811.38

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Solution

The fourth proportional to 5,455.29, 8,177.43 and 3,811.38 is: 5,713.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,455.29 : 8,177.43 = 3,811.38 : x
  2. Step 2: Convert to fraction form
    5,455.29/8,177.43 = 3,811.38/x
  3. Step 3: Cross multiply
    5,455.29x = 8,177.43 × 3,811.38
  4. Step 4: Simplify right side
    5,455.29x = 31,167,293.15
  5. Step 5: Solve for x
    x = 31,167,293.15/5,455.29
  6. Step 6: Final answer
    x = 5,713.22

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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.