Home / 6,712.16-9,262.72-3,728

Finding the Fourth Proportional to 6,712.16, 9,262.72 and 3,728

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Solution

The fourth proportional to 6,712.16, 9,262.72 and 3,728 is: 5,144.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,712.16 : 9,262.72 = 3,728 : x
  2. Step 2: Convert to fraction form
    6,712.16/9,262.72 = 3,728/x
  3. Step 3: Cross multiply
    6,712.16x = 9,262.72 × 3,728
  4. Step 4: Simplify right side
    6,712.16x = 34,531,420.16
  5. Step 5: Solve for x
    x = 34,531,420.16/6,712.16
  6. Step 6: Final answer
    x = 5,144.61

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.