Home / 6,128.38-8,456.90-3,475.88

Finding the Fourth Proportional to 6,128.38, 8,456.90 and 3,475.88

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Solution

The fourth proportional to 6,128.38, 8,456.90 and 3,475.88 is: 4,796.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,128.38 : 8,456.90 = 3,475.88 : x
  2. Step 2: Convert to fraction form
    6,128.38/8,456.90 = 3,475.88/x
  3. Step 3: Cross multiply
    6,128.38x = 8,456.90 × 3,475.88
  4. Step 4: Simplify right side
    6,128.38x = 29,395,169.57
  5. Step 5: Solve for x
    x = 29,395,169.57/6,128.38
  6. Step 6: Final answer
    x = 4,796.56

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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.