Home / 3,213.18-4,823.71-2,118.46

Finding the Fourth Proportional to 3,213.18, 4,823.71 and 2,118.46

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Solution

The fourth proportional to 3,213.18, 4,823.71 and 2,118.46 is: 3,180.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,213.18 : 4,823.71 = 2,118.46 : x
  2. Step 2: Convert to fraction form
    3,213.18/4,823.71 = 2,118.46/x
  3. Step 3: Cross multiply
    3,213.18x = 4,823.71 × 2,118.46
  4. Step 4: Simplify right side
    3,213.18x = 10,218,836.69
  5. Step 5: Solve for x
    x = 10,218,836.69/3,213.18
  6. Step 6: Final answer
    x = 3,180.29

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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.