Home / 4,252.89-6,380.45-1,331.22

Finding the Fourth Proportional to 4,252.89, 6,380.45 and 1,331.22

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Solution

The fourth proportional to 4,252.89, 6,380.45 and 1,331.22 is: 1,997.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,252.89 : 6,380.45 = 1,331.22 : x
  2. Step 2: Convert to fraction form
    4,252.89/6,380.45 = 1,331.22/x
  3. Step 3: Cross multiply
    4,252.89x = 6,380.45 × 1,331.22
  4. Step 4: Simplify right side
    4,252.89x = 8,493,782.65
  5. Step 5: Solve for x
    x = 8,493,782.65/4,252.89
  6. Step 6: Final answer
    x = 1,997.18

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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.