Home / 6,120.38-9,168.15-2,828.90

Finding the Fourth Proportional to 6,120.38, 9,168.15 and 2,828.90

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Solution

The fourth proportional to 6,120.38, 9,168.15 and 2,828.90 is: 4,237.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,120.38 : 9,168.15 = 2,828.90 : x
  2. Step 2: Convert to fraction form
    6,120.38/9,168.15 = 2,828.90/x
  3. Step 3: Cross multiply
    6,120.38x = 9,168.15 × 2,828.90
  4. Step 4: Simplify right side
    6,120.38x = 25,935,779.54
  5. Step 5: Solve for x
    x = 25,935,779.54/6,120.38
  6. Step 6: Final answer
    x = 4,237.61

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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.