Home / 7,780.72-11,669.46-2,232.83

Finding the Fourth Proportional to 7,780.72, 11,669.46 and 2,232.83

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Solution

The fourth proportional to 7,780.72, 11,669.46 and 2,232.83 is: 3,348.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,780.72 : 11,669.46 = 2,232.83 : x
  2. Step 2: Convert to fraction form
    7,780.72/11,669.46 = 2,232.83/x
  3. Step 3: Cross multiply
    7,780.72x = 11,669.46 × 2,232.83
  4. Step 4: Simplify right side
    7,780.72x = 26,055,920.37
  5. Step 5: Solve for x
    x = 26,055,920.37/7,780.72
  6. Step 6: Final answer
    x = 3,348.78

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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.