Home / 7,965.60-11,949.72-2,770.08

Finding the Fourth Proportional to 7,965.60, 11,949.72 and 2,770.08

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Solution

The fourth proportional to 7,965.60, 11,949.72 and 2,770.08 is: 4,155.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,965.60 : 11,949.72 = 2,770.08 : x
  2. Step 2: Convert to fraction form
    7,965.60/11,949.72 = 2,770.08/x
  3. Step 3: Cross multiply
    7,965.60x = 11,949.72 × 2,770.08
  4. Step 4: Simplify right side
    7,965.60x = 33,101,680.38
  5. Step 5: Solve for x
    x = 33,101,680.38/7,965.60
  6. Step 6: Final answer
    x = 4,155.58

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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.