Home / 3,447.72-5,186.16-3,126.96

Finding the Fourth Proportional to 3,447.72, 5,186.16 and 3,126.96

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Solution

The fourth proportional to 3,447.72, 5,186.16 and 3,126.96 is: 4,703.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,447.72 : 5,186.16 = 3,126.96 : x
  2. Step 2: Convert to fraction form
    3,447.72/5,186.16 = 3,126.96/x
  3. Step 3: Cross multiply
    3,447.72x = 5,186.16 × 3,126.96
  4. Step 4: Simplify right side
    3,447.72x = 16,216,914.87
  5. Step 5: Solve for x
    x = 16,216,914.87/3,447.72
  6. Step 6: Final answer
    x = 4,703.66

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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.