Home / 7,936.88-11,889.40-3,780.92

Finding the Fourth Proportional to 7,936.88, 11,889.40 and 3,780.92

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Solution

The fourth proportional to 7,936.88, 11,889.40 and 3,780.92 is: 5,663.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,936.88 : 11,889.40 = 3,780.92 : x
  2. Step 2: Convert to fraction form
    7,936.88/11,889.40 = 3,780.92/x
  3. Step 3: Cross multiply
    7,936.88x = 11,889.40 × 3,780.92
  4. Step 4: Simplify right side
    7,936.88x = 44,952,870.25
  5. Step 5: Solve for x
    x = 44,952,870.25/7,936.88
  6. Step 6: Final answer
    x = 5,663.80

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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.