Home / 3,475.98-5,212.75-2,157.70

Finding the Fourth Proportional to 3,475.98, 5,212.75 and 2,157.70

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Solution

The fourth proportional to 3,475.98, 5,212.75 and 2,157.70 is: 3,235.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,475.98 : 5,212.75 = 2,157.70 : x
  2. Step 2: Convert to fraction form
    3,475.98/5,212.75 = 2,157.70/x
  3. Step 3: Cross multiply
    3,475.98x = 5,212.75 × 2,157.70
  4. Step 4: Simplify right side
    3,475.98x = 11,247,550.68
  5. Step 5: Solve for x
    x = 11,247,550.68/3,475.98
  6. Step 6: Final answer
    x = 3,235.79

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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.