Home / 6,729.78-9,285.54-4,076.61

Finding the Fourth Proportional to 6,729.78, 9,285.54 and 4,076.61

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Solution

The fourth proportional to 6,729.78, 9,285.54 and 4,076.61 is: 5,624.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,729.78 : 9,285.54 = 4,076.61 : x
  2. Step 2: Convert to fraction form
    6,729.78/9,285.54 = 4,076.61/x
  3. Step 3: Cross multiply
    6,729.78x = 9,285.54 × 4,076.61
  4. Step 4: Simplify right side
    6,729.78x = 37,853,525.22
  5. Step 5: Solve for x
    x = 37,853,525.22/6,729.78
  6. Step 6: Final answer
    x = 5,624.78

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1.5x scale

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.