Home / 6,639.85-9,163.25-3,655.96

Finding the Fourth Proportional to 6,639.85, 9,163.25 and 3,655.96

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Solution

The fourth proportional to 6,639.85, 9,163.25 and 3,655.96 is: 5,045.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,639.85 : 9,163.25 = 3,655.96 : x
  2. Step 2: Convert to fraction form
    6,639.85/9,163.25 = 3,655.96/x
  3. Step 3: Cross multiply
    6,639.85x = 9,163.25 × 3,655.96
  4. Step 4: Simplify right side
    6,639.85x = 33,500,475.47
  5. Step 5: Solve for x
    x = 33,500,475.47/6,639.85
  6. Step 6: Final answer
    x = 5,045.37

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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.