Home / 3,211.36-4,815.11-1,334.99

Finding the Fourth Proportional to 3,211.36, 4,815.11 and 1,334.99

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Solution

The fourth proportional to 3,211.36, 4,815.11 and 1,334.99 is: 2,001.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,211.36 : 4,815.11 = 1,334.99 : x
  2. Step 2: Convert to fraction form
    3,211.36/4,815.11 = 1,334.99/x
  3. Step 3: Cross multiply
    3,211.36x = 4,815.11 × 1,334.99
  4. Step 4: Simplify right side
    3,211.36x = 6,428,099.62
  5. Step 5: Solve for x
    x = 6,428,099.62/3,211.36
  6. Step 6: Final answer
    x = 2,001.68

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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.