Home / 7,980.84-11,966.07-3,299.59

Finding the Fourth Proportional to 7,980.84, 11,966.07 and 3,299.59

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Solution

The fourth proportional to 7,980.84, 11,966.07 and 3,299.59 is: 4,947.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,980.84 : 11,966.07 = 3,299.59 : x
  2. Step 2: Convert to fraction form
    7,980.84/11,966.07 = 3,299.59/x
  3. Step 3: Cross multiply
    7,980.84x = 11,966.07 × 3,299.59
  4. Step 4: Simplify right side
    7,980.84x = 39,483,174.66
  5. Step 5: Solve for x
    x = 39,483,174.66/7,980.84
  6. Step 6: Final answer
    x = 4,947.24

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1.5x scale

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.