Home / 6,426.20-9,639.77-2,728.01

Finding the Fourth Proportional to 6,426.20, 9,639.77 and 2,728.01

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Solution

The fourth proportional to 6,426.20, 9,639.77 and 2,728.01 is: 4,092.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,426.20 : 9,639.77 = 2,728.01 : x
  2. Step 2: Convert to fraction form
    6,426.20/9,639.77 = 2,728.01/x
  3. Step 3: Cross multiply
    6,426.20x = 9,639.77 × 2,728.01
  4. Step 4: Simplify right side
    6,426.20x = 26,297,388.96
  5. Step 5: Solve for x
    x = 26,297,388.96/6,426.20
  6. Step 6: Final answer
    x = 4,092.21

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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.