Home / 6,128.16-9,192.60-2,665.68

Finding the Fourth Proportional to 6,128.16, 9,192.60 and 2,665.68

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Solution

The fourth proportional to 6,128.16, 9,192.60 and 2,665.68 is: 3,998.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,128.16 : 9,192.60 = 2,665.68 : x
  2. Step 2: Convert to fraction form
    6,128.16/9,192.60 = 2,665.68/x
  3. Step 3: Cross multiply
    6,128.16x = 9,192.60 × 2,665.68
  4. Step 4: Simplify right side
    6,128.16x = 24,504,529.97
  5. Step 5: Solve for x
    x = 24,504,529.97/6,128.16
  6. Step 6: Final answer
    x = 3,998.68

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1.5x scale

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.