Home / 5,109.62-7,664.97-2,187.14

Finding the Fourth Proportional to 5,109.62, 7,664.97 and 2,187.14

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Solution

The fourth proportional to 5,109.62, 7,664.97 and 2,187.14 is: 3,280.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,109.62 : 7,664.97 = 2,187.14 : x
  2. Step 2: Convert to fraction form
    5,109.62/7,664.97 = 2,187.14/x
  3. Step 3: Cross multiply
    5,109.62x = 7,664.97 × 2,187.14
  4. Step 4: Simplify right side
    5,109.62x = 16,764,362.49
  5. Step 5: Solve for x
    x = 16,764,362.49/5,109.62
  6. Step 6: Final answer
    x = 3,280.94

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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.