Home / 4,253.88-6,381.30-1,331.64

Finding the Fourth Proportional to 4,253.88, 6,381.30 and 1,331.64

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Solution

The fourth proportional to 4,253.88, 6,381.30 and 1,331.64 is: 1,997.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,253.88 : 6,381.30 = 1,331.64 : x
  2. Step 2: Convert to fraction form
    4,253.88/6,381.30 = 1,331.64/x
  3. Step 3: Cross multiply
    4,253.88x = 6,381.30 × 1,331.64
  4. Step 4: Simplify right side
    4,253.88x = 8,497,594.33
  5. Step 5: Solve for x
    x = 8,497,594.33/4,253.88
  6. Step 6: Final answer
    x = 1,997.61

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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.