Home / 5,189.55-7,782.51-3,212.14

Finding the Fourth Proportional to 5,189.55, 7,782.51 and 3,212.14

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Solution

The fourth proportional to 5,189.55, 7,782.51 and 3,212.14 is: 4,817.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,189.55 : 7,782.51 = 3,212.14 : x
  2. Step 2: Convert to fraction form
    5,189.55/7,782.51 = 3,212.14/x
  3. Step 3: Cross multiply
    5,189.55x = 7,782.51 × 3,212.14
  4. Step 4: Simplify right side
    5,189.55x = 24,998,518.85
  5. Step 5: Solve for x
    x = 24,998,518.85/5,189.55
  6. Step 6: Final answer
    x = 4,817.09

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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.