Home / 6,139.86-9,207.99-2,190.48

Finding the Fourth Proportional to 6,139.86, 9,207.99 and 2,190.48

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Solution

The fourth proportional to 6,139.86, 9,207.99 and 2,190.48 is: 3,285.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,139.86 : 9,207.99 = 2,190.48 : x
  2. Step 2: Convert to fraction form
    6,139.86/9,207.99 = 2,190.48/x
  3. Step 3: Cross multiply
    6,139.86x = 9,207.99 × 2,190.48
  4. Step 4: Simplify right side
    6,139.86x = 20,169,917.94
  5. Step 5: Solve for x
    x = 20,169,917.94/6,139.86
  6. Step 6: Final answer
    x = 3,285.08

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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.