Home / 3,212.70-4,816.98-1,339.88

Finding the Fourth Proportional to 3,212.70, 4,816.98 and 1,339.88

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Solution

The fourth proportional to 3,212.70, 4,816.98 and 1,339.88 is: 2,008.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,212.70 : 4,816.98 = 1,339.88 : x
  2. Step 2: Convert to fraction form
    3,212.70/4,816.98 = 1,339.88/x
  3. Step 3: Cross multiply
    3,212.70x = 4,816.98 × 1,339.88
  4. Step 4: Simplify right side
    3,212.70x = 6,454,151.08
  5. Step 5: Solve for x
    x = 6,454,151.08/3,212.70
  6. Step 6: Final answer
    x = 2,008.95

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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.