Home / 7,639.49-11,455.61-2,961.68

Finding the Fourth Proportional to 7,639.49, 11,455.61 and 2,961.68

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Solution

The fourth proportional to 7,639.49, 11,455.61 and 2,961.68 is: 4,441.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,639.49 : 11,455.61 = 2,961.68 : x
  2. Step 2: Convert to fraction form
    7,639.49/11,455.61 = 2,961.68/x
  3. Step 3: Cross multiply
    7,639.49x = 11,455.61 × 2,961.68
  4. Step 4: Simplify right side
    7,639.49x = 33,927,778.94
  5. Step 5: Solve for x
    x = 33,927,778.94/7,639.49
  6. Step 6: Final answer
    x = 4,441.11

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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.