Home / 5,105.84-7,660.91-2,144.95

Finding the Fourth Proportional to 5,105.84, 7,660.91 and 2,144.95

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Solution

The fourth proportional to 5,105.84, 7,660.91 and 2,144.95 is: 3,218.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,105.84 : 7,660.91 = 2,144.95 : x
  2. Step 2: Convert to fraction form
    5,105.84/7,660.91 = 2,144.95/x
  3. Step 3: Cross multiply
    5,105.84x = 7,660.91 × 2,144.95
  4. Step 4: Simplify right side
    5,105.84x = 16,432,255.11
  5. Step 5: Solve for x
    x = 16,432,255.11/5,105.84
  6. Step 6: Final answer
    x = 3,218.33

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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.