Home / 7,780.80-11,667.69-2,232.89

Finding the Fourth Proportional to 7,780.80, 11,667.69 and 2,232.89

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Solution

The fourth proportional to 7,780.80, 11,667.69 and 2,232.89 is: 3,348.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,780.80 : 11,667.69 = 2,232.89 : x
  2. Step 2: Convert to fraction form
    7,780.80/11,667.69 = 2,232.89/x
  3. Step 3: Cross multiply
    7,780.80x = 11,667.69 × 2,232.89
  4. Step 4: Simplify right side
    7,780.80x = 26,052,609.99
  5. Step 5: Solve for x
    x = 26,052,609.99/7,780.80
  6. Step 6: Final answer
    x = 3,348.32

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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.