Home / 5,472.72-8,212.40-2,185.32

Finding the Fourth Proportional to 5,472.72, 8,212.40 and 2,185.32

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Solution

The fourth proportional to 5,472.72, 8,212.40 and 2,185.32 is: 3,279.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,472.72 : 8,212.40 = 2,185.32 : x
  2. Step 2: Convert to fraction form
    5,472.72/8,212.40 = 2,185.32/x
  3. Step 3: Cross multiply
    5,472.72x = 8,212.40 × 2,185.32
  4. Step 4: Simplify right side
    5,472.72x = 17,946,721.97
  5. Step 5: Solve for x
    x = 17,946,721.97/5,472.72
  6. Step 6: Final answer
    x = 3,279.31

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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.