Home / 6,128.72-9,192.12-2,665.04

Finding the Fourth Proportional to 6,128.72, 9,192.12 and 2,665.04

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Solution

The fourth proportional to 6,128.72, 9,192.12 and 2,665.04 is: 3,997.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,128.72 : 9,192.12 = 2,665.04 : x
  2. Step 2: Convert to fraction form
    6,128.72/9,192.12 = 2,665.04/x
  3. Step 3: Cross multiply
    6,128.72x = 9,192.12 × 2,665.04
  4. Step 4: Simplify right side
    6,128.72x = 24,497,367.48
  5. Step 5: Solve for x
    x = 24,497,367.48/6,128.72
  6. Step 6: Final answer
    x = 3,997.14

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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.