Home / 3,456.81-5,185.22-1,148.31

Finding the Fourth Proportional to 3,456.81, 5,185.22 and 1,148.31

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Solution

The fourth proportional to 3,456.81, 5,185.22 and 1,148.31 is: 1,722.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,456.81 : 5,185.22 = 1,148.31 : x
  2. Step 2: Convert to fraction form
    3,456.81/5,185.22 = 1,148.31/x
  3. Step 3: Cross multiply
    3,456.81x = 5,185.22 × 1,148.31
  4. Step 4: Simplify right side
    3,456.81x = 5,954,252.94
  5. Step 5: Solve for x
    x = 5,954,252.94/3,456.81
  6. Step 6: Final answer
    x = 1,722.47

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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.