Home / 7,976.64-11,965.50-2,133.84

Finding the Fourth Proportional to 7,976.64, 11,965.50 and 2,133.84

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Solution

The fourth proportional to 7,976.64, 11,965.50 and 2,133.84 is: 3,200.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,976.64 : 11,965.50 = 2,133.84 : x
  2. Step 2: Convert to fraction form
    7,976.64/11,965.50 = 2,133.84/x
  3. Step 3: Cross multiply
    7,976.64x = 11,965.50 × 2,133.84
  4. Step 4: Simplify right side
    7,976.64x = 25,532,462.52
  5. Step 5: Solve for x
    x = 25,532,462.52/7,976.64
  6. Step 6: Final answer
    x = 3,200.90

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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.