Home / 3,207.21-4,425.90-1,791

Finding the Fourth Proportional to 3,207.21, 4,425.90 and 1,791

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Solution

The fourth proportional to 3,207.21, 4,425.90 and 1,791 is: 2,471.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,207.21 : 4,425.90 = 1,791 : x
  2. Step 2: Convert to fraction form
    3,207.21/4,425.90 = 1,791/x
  3. Step 3: Cross multiply
    3,207.21x = 4,425.90 × 1,791
  4. Step 4: Simplify right side
    3,207.21x = 7,926,786.90
  5. Step 5: Solve for x
    x = 7,926,786.90/3,207.21
  6. Step 6: Final answer
    x = 2,471.55

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.