Home / 7,128.48-10,693.92-2,197.98

Finding the Fourth Proportional to 7,128.48, 10,693.92 and 2,197.98

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Solution

The fourth proportional to 7,128.48, 10,693.92 and 2,197.98 is: 3,297.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,128.48 : 10,693.92 = 2,197.98 : x
  2. Step 2: Convert to fraction form
    7,128.48/10,693.92 = 2,197.98/x
  3. Step 3: Cross multiply
    7,128.48x = 10,693.92 × 2,197.98
  4. Step 4: Simplify right side
    7,128.48x = 23,505,022.28
  5. Step 5: Solve for x
    x = 23,505,022.28/7,128.48
  6. Step 6: Final answer
    x = 3,297.34

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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.