Home / 4,253.15-6,379.74-1,331.48

Finding the Fourth Proportional to 4,253.15, 6,379.74 and 1,331.48

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Solution

The fourth proportional to 4,253.15, 6,379.74 and 1,331.48 is: 1,997.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,253.15 : 6,379.74 = 1,331.48 : x
  2. Step 2: Convert to fraction form
    4,253.15/6,379.74 = 1,331.48/x
  3. Step 3: Cross multiply
    4,253.15x = 6,379.74 × 1,331.48
  4. Step 4: Simplify right side
    4,253.15x = 8,494,512.16
  5. Step 5: Solve for x
    x = 8,494,512.16/4,253.15
  6. Step 6: Final answer
    x = 1,997.23

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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.