Home / 3,172.90-4,759.68-1,322.98

Finding the Fourth Proportional to 3,172.90, 4,759.68 and 1,322.98

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Solution

The fourth proportional to 3,172.90, 4,759.68 and 1,322.98 is: 1,984.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,172.90 : 4,759.68 = 1,322.98 : x
  2. Step 2: Convert to fraction form
    3,172.90/4,759.68 = 1,322.98/x
  3. Step 3: Cross multiply
    3,172.90x = 4,759.68 × 1,322.98
  4. Step 4: Simplify right side
    3,172.90x = 6,296,961.45
  5. Step 5: Solve for x
    x = 6,296,961.45/3,172.90
  6. Step 6: Final answer
    x = 1,984.61

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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.