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Finding the Fourth Proportional to 7,207.78, 10,794.18 and 3,500.80

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Solution

The fourth proportional to 7,207.78, 10,794.18 and 3,500.80 is: 5,242.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,207.78 : 10,794.18 = 3,500.80 : x
  2. Step 2: Convert to fraction form
    7,207.78/10,794.18 = 3,500.80/x
  3. Step 3: Cross multiply
    7,207.78x = 10,794.18 × 3,500.80
  4. Step 4: Simplify right side
    7,207.78x = 37,788,265.34
  5. Step 5: Solve for x
    x = 37,788,265.34/7,207.78
  6. Step 6: Final answer
    x = 5,242.71

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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.