Home / 7,170.64-9,895.39-3,983.94

Finding the Fourth Proportional to 7,170.64, 9,895.39 and 3,983.94

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Solution

The fourth proportional to 7,170.64, 9,895.39 and 3,983.94 is: 5,497.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,170.64 : 9,895.39 = 3,983.94 : x
  2. Step 2: Convert to fraction form
    7,170.64/9,895.39 = 3,983.94/x
  3. Step 3: Cross multiply
    7,170.64x = 9,895.39 × 3,983.94
  4. Step 4: Simplify right side
    7,170.64x = 39,422,630.08
  5. Step 5: Solve for x
    x = 39,422,630.08/7,170.64
  6. Step 6: Final answer
    x = 5,497.79

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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.