Home / 4,253.37-6,380.12-1,331.70

Finding the Fourth Proportional to 4,253.37, 6,380.12 and 1,331.70

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Solution

The fourth proportional to 4,253.37, 6,380.12 and 1,331.70 is: 1,997.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,253.37 : 6,380.12 = 1,331.70 : x
  2. Step 2: Convert to fraction form
    4,253.37/6,380.12 = 1,331.70/x
  3. Step 3: Cross multiply
    4,253.37x = 6,380.12 × 1,331.70
  4. Step 4: Simplify right side
    4,253.37x = 8,496,405.80
  5. Step 5: Solve for x
    x = 8,496,405.80/4,253.37
  6. Step 6: Final answer
    x = 1,997.57

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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.