Home / 6,387.45-9,571.43-2,687.66

Finding the Fourth Proportional to 6,387.45, 9,571.43 and 2,687.66

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Solution

The fourth proportional to 6,387.45, 9,571.43 and 2,687.66 is: 4,027.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,387.45 : 9,571.43 = 2,687.66 : x
  2. Step 2: Convert to fraction form
    6,387.45/9,571.43 = 2,687.66/x
  3. Step 3: Cross multiply
    6,387.45x = 9,571.43 × 2,687.66
  4. Step 4: Simplify right side
    6,387.45x = 25,724,688.26
  5. Step 5: Solve for x
    x = 25,724,688.26/6,387.45
  6. Step 6: Final answer
    x = 4,027.38

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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.