Home / 7,351.92-11,029.72-2,157.80

Finding the Fourth Proportional to 7,351.92, 11,029.72 and 2,157.80

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Solution

The fourth proportional to 7,351.92, 11,029.72 and 2,157.80 is: 3,237.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,351.92 : 11,029.72 = 2,157.80 : x
  2. Step 2: Convert to fraction form
    7,351.92/11,029.72 = 2,157.80/x
  3. Step 3: Cross multiply
    7,351.92x = 11,029.72 × 2,157.80
  4. Step 4: Simplify right side
    7,351.92x = 23,799,869.27
  5. Step 5: Solve for x
    x = 23,799,869.27/7,351.92
  6. Step 6: Final answer
    x = 3,237.23

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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.