Home / 4,072-5,619.40-2,209.04

Finding the Fourth Proportional to 4,072, 5,619.40 and 2,209.04

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Solution

The fourth proportional to 4,072, 5,619.40 and 2,209.04 is: 3,048.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,072 : 5,619.40 = 2,209.04 : x
  2. Step 2: Convert to fraction form
    4,072/5,619.40 = 2,209.04/x
  3. Step 3: Cross multiply
    4,072x = 5,619.40 × 2,209.04
  4. Step 4: Simplify right side
    4,072x = 12,413,479.38
  5. Step 5: Solve for x
    x = 12,413,479.38/4,072
  6. Step 6: Final answer
    x = 3,048.50

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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.