Home / 3,118.70-4,299.62-2,232.96

Finding the Fourth Proportional to 3,118.70, 4,299.62 and 2,232.96

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Solution

The fourth proportional to 3,118.70, 4,299.62 and 2,232.96 is: 3,078.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,118.70 : 4,299.62 = 2,232.96 : x
  2. Step 2: Convert to fraction form
    3,118.70/4,299.62 = 2,232.96/x
  3. Step 3: Cross multiply
    3,118.70x = 4,299.62 × 2,232.96
  4. Step 4: Simplify right side
    3,118.70x = 9,600,879.48
  5. Step 5: Solve for x
    x = 9,600,879.48/3,118.70
  6. Step 6: Final answer
    x = 3,078.49

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.