Home / 5,211.71-7,812.46-3,331.83

Finding the Fourth Proportional to 5,211.71, 7,812.46 and 3,331.83

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Solution

The fourth proportional to 5,211.71, 7,812.46 and 3,331.83 is: 4,994.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,211.71 : 7,812.46 = 3,331.83 : x
  2. Step 2: Convert to fraction form
    5,211.71/7,812.46 = 3,331.83/x
  3. Step 3: Cross multiply
    5,211.71x = 7,812.46 × 3,331.83
  4. Step 4: Simplify right side
    5,211.71x = 26,029,771.94
  5. Step 5: Solve for x
    x = 26,029,771.94/5,211.71
  6. Step 6: Final answer
    x = 4,994.48

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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.