Home / 3,212.76-4,817.04-2,113.78

Finding the Fourth Proportional to 3,212.76, 4,817.04 and 2,113.78

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Solution

The fourth proportional to 3,212.76, 4,817.04 and 2,113.78 is: 3,169.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,212.76 : 4,817.04 = 2,113.78 : x
  2. Step 2: Convert to fraction form
    3,212.76/4,817.04 = 2,113.78/x
  3. Step 3: Cross multiply
    3,212.76x = 4,817.04 × 2,113.78
  4. Step 4: Simplify right side
    3,212.76x = 10,182,162.81
  5. Step 5: Solve for x
    x = 10,182,162.81/3,212.76
  6. Step 6: Final answer
    x = 3,169.29

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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.