Home / 4,213.89-6,321.84-1,292.19

Finding the Fourth Proportional to 4,213.89, 6,321.84 and 1,292.19

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Solution

The fourth proportional to 4,213.89, 6,321.84 and 1,292.19 is: 1,938.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,213.89 : 6,321.84 = 1,292.19 : x
  2. Step 2: Convert to fraction form
    4,213.89/6,321.84 = 1,292.19/x
  3. Step 3: Cross multiply
    4,213.89x = 6,321.84 × 1,292.19
  4. Step 4: Simplify right side
    4,213.89x = 8,169,018.43
  5. Step 5: Solve for x
    x = 8,169,018.43/4,213.89
  6. Step 6: Final answer
    x = 1,938.59

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1.5x scale

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.