Home / 7,855.55-11,780.83-2,589.58

Finding the Fourth Proportional to 7,855.55, 11,780.83 and 2,589.58

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Solution

The fourth proportional to 7,855.55, 11,780.83 and 2,589.58 is: 3,883.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,855.55 : 11,780.83 = 2,589.58 : x
  2. Step 2: Convert to fraction form
    7,855.55/11,780.83 = 2,589.58/x
  3. Step 3: Cross multiply
    7,855.55x = 11,780.83 × 2,589.58
  4. Step 4: Simplify right side
    7,855.55x = 30,507,401.75
  5. Step 5: Solve for x
    x = 30,507,401.75/7,855.55
  6. Step 6: Final answer
    x = 3,883.55

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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.