Home / 4,072.31-5,619.79-2,209.31

Finding the Fourth Proportional to 4,072.31, 5,619.79 and 2,209.31

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Solution

The fourth proportional to 4,072.31, 5,619.79 and 2,209.31 is: 3,048.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,072.31 : 5,619.79 = 2,209.31 : x
  2. Step 2: Convert to fraction form
    4,072.31/5,619.79 = 2,209.31/x
  3. Step 3: Cross multiply
    4,072.31x = 5,619.79 × 2,209.31
  4. Step 4: Simplify right side
    4,072.31x = 12,415,875.06
  5. Step 5: Solve for x
    x = 12,415,875.06/4,072.31
  6. Step 6: Final answer
    x = 3,048.85

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.