Home / 6,639.94-9,163.18-3,655.84

Finding the Fourth Proportional to 6,639.94, 9,163.18 and 3,655.84

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Solution

The fourth proportional to 6,639.94, 9,163.18 and 3,655.84 is: 5,045.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,639.94 : 9,163.18 = 3,655.84 : x
  2. Step 2: Convert to fraction form
    6,639.94/9,163.18 = 3,655.84/x
  3. Step 3: Cross multiply
    6,639.94x = 9,163.18 × 3,655.84
  4. Step 4: Simplify right side
    6,639.94x = 33,499,074.16
  5. Step 5: Solve for x
    x = 33,499,074.16/6,639.94
  6. Step 6: Final answer
    x = 5,045.09

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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.