Home / 5,105.76-7,658.10-2,634.18

Finding the Fourth Proportional to 5,105.76, 7,658.10 and 2,634.18

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Solution

The fourth proportional to 5,105.76, 7,658.10 and 2,634.18 is: 3,950.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,105.76 : 7,658.10 = 2,634.18 : x
  2. Step 2: Convert to fraction form
    5,105.76/7,658.10 = 2,634.18/x
  3. Step 3: Cross multiply
    5,105.76x = 7,658.10 × 2,634.18
  4. Step 4: Simplify right side
    5,105.76x = 20,172,813.86
  5. Step 5: Solve for x
    x = 20,172,813.86/5,105.76
  6. Step 6: Final answer
    x = 3,950.99

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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.