Home / 3,211.44-4,814.58-2,158.36

Finding the Fourth Proportional to 3,211.44, 4,814.58 and 2,158.36

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Solution

The fourth proportional to 3,211.44, 4,814.58 and 2,158.36 is: 3,235.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,211.44 : 4,814.58 = 2,158.36 : x
  2. Step 2: Convert to fraction form
    3,211.44/4,814.58 = 2,158.36/x
  3. Step 3: Cross multiply
    3,211.44x = 4,814.58 × 2,158.36
  4. Step 4: Simplify right side
    3,211.44x = 10,391,596.89
  5. Step 5: Solve for x
    x = 10,391,596.89/3,211.44
  6. Step 6: Final answer
    x = 3,235.81

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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.