Home / 5,212.71-7,192.04-3,116.43

Finding the Fourth Proportional to 5,212.71, 7,192.04 and 3,116.43

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Solution

The fourth proportional to 5,212.71, 7,192.04 and 3,116.43 is: 4,299.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,212.71 : 7,192.04 = 3,116.43 : x
  2. Step 2: Convert to fraction form
    5,212.71/7,192.04 = 3,116.43/x
  3. Step 3: Cross multiply
    5,212.71x = 7,192.04 × 3,116.43
  4. Step 4: Simplify right side
    5,212.71x = 22,413,473.64
  5. Step 5: Solve for x
    x = 22,413,473.64/5,212.71
  6. Step 6: Final answer
    x = 4,299.77

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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.