Home / 4,213.85-6,321.98-1,292.58

Finding the Fourth Proportional to 4,213.85, 6,321.98 and 1,292.58

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Solution

The fourth proportional to 4,213.85, 6,321.98 and 1,292.58 is: 1,939.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,213.85 : 6,321.98 = 1,292.58 : x
  2. Step 2: Convert to fraction form
    4,213.85/6,321.98 = 1,292.58/x
  3. Step 3: Cross multiply
    4,213.85x = 6,321.98 × 1,292.58
  4. Step 4: Simplify right side
    4,213.85x = 8,171,668.14
  5. Step 5: Solve for x
    x = 8,171,668.14/4,213.85
  6. Step 6: Final answer
    x = 1,939.24

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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.