Home / 7,910.10-11,855.55-3,522.90

Finding the Fourth Proportional to 7,910.10, 11,855.55 and 3,522.90

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Solution

The fourth proportional to 7,910.10, 11,855.55 and 3,522.90 is: 5,280.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,910.10 : 11,855.55 = 3,522.90 : x
  2. Step 2: Convert to fraction form
    7,910.10/11,855.55 = 3,522.90/x
  3. Step 3: Cross multiply
    7,910.10x = 11,855.55 × 3,522.90
  4. Step 4: Simplify right side
    7,910.10x = 41,765,917.10
  5. Step 5: Solve for x
    x = 41,765,917.10/7,910.10
  6. Step 6: Final answer
    x = 5,280.07

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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.