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Finding the Fourth Proportional to 7,103.82, 10,658.80 and 3,813.07

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Solution

The fourth proportional to 7,103.82, 10,658.80 and 3,813.07 is: 5,721.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,103.82 : 10,658.80 = 3,813.07 : x
  2. Step 2: Convert to fraction form
    7,103.82/10,658.80 = 3,813.07/x
  3. Step 3: Cross multiply
    7,103.82x = 10,658.80 × 3,813.07
  4. Step 4: Simplify right side
    7,103.82x = 40,642,682.92
  5. Step 5: Solve for x
    x = 40,642,682.92/7,103.82
  6. Step 6: Final answer
    x = 5,721.25

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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.