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Finding the Fourth Proportional to 3,694.78, 5,070.10 and 3,360.66

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Solution

The fourth proportional to 3,694.78, 5,070.10 and 3,360.66 is: 4,611.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,694.78 : 5,070.10 = 3,360.66 : x
  2. Step 2: Convert to fraction form
    3,694.78/5,070.10 = 3,360.66/x
  3. Step 3: Cross multiply
    3,694.78x = 5,070.10 × 3,360.66
  4. Step 4: Simplify right side
    3,694.78x = 17,038,882.27
  5. Step 5: Solve for x
    x = 17,038,882.27/3,694.78
  6. Step 6: Final answer
    x = 4,611.61

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.