Home / 3,207.08-4,811.21-1,126.46

Finding the Fourth Proportional to 3,207.08, 4,811.21 and 1,126.46

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Solution

The fourth proportional to 3,207.08, 4,811.21 and 1,126.46 is: 1,689.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,207.08 : 4,811.21 = 1,126.46 : x
  2. Step 2: Convert to fraction form
    3,207.08/4,811.21 = 1,126.46/x
  3. Step 3: Cross multiply
    3,207.08x = 4,811.21 × 1,126.46
  4. Step 4: Simplify right side
    3,207.08x = 5,419,629.98
  5. Step 5: Solve for x
    x = 5,419,629.98/3,207.08
  6. Step 6: Final answer
    x = 1,689.90

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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.