Home / 3,219.57-4,829.36-2,072.61

Finding the Fourth Proportional to 3,219.57, 4,829.36 and 2,072.61

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Solution

The fourth proportional to 3,219.57, 4,829.36 and 2,072.61 is: 3,108.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,219.57 : 4,829.36 = 2,072.61 : x
  2. Step 2: Convert to fraction form
    3,219.57/4,829.36 = 2,072.61/x
  3. Step 3: Cross multiply
    3,219.57x = 4,829.36 × 2,072.61
  4. Step 4: Simplify right side
    3,219.57x = 10,009,369.47
  5. Step 5: Solve for x
    x = 10,009,369.47/3,219.57
  6. Step 6: Final answer
    x = 3,108.92

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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.