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Finding the Fourth Proportional to 7,103.88, 10,658.89 and 3,813.13

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Solution

The fourth proportional to 7,103.88, 10,658.89 and 3,813.13 is: 5,721.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,103.88 : 10,658.89 = 3,813.13 : x
  2. Step 2: Convert to fraction form
    7,103.88/10,658.89 = 3,813.13/x
  3. Step 3: Cross multiply
    7,103.88x = 10,658.89 × 3,813.13
  4. Step 4: Simplify right side
    7,103.88x = 40,643,706.58
  5. Step 5: Solve for x
    x = 40,643,706.58/7,103.88
  6. Step 6: Final answer
    x = 5,721.34

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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.