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Finding the Fourth Proportional to 3,940.16, 5,910.23 and 3,699.59

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Solution

The fourth proportional to 3,940.16, 5,910.23 and 3,699.59 is: 5,549.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,940.16 : 5,910.23 = 3,699.59 : x
  2. Step 2: Convert to fraction form
    3,940.16/5,910.23 = 3,699.59/x
  3. Step 3: Cross multiply
    3,940.16x = 5,910.23 × 3,699.59
  4. Step 4: Simplify right side
    3,940.16x = 21,865,407.50
  5. Step 5: Solve for x
    x = 21,865,407.50/3,940.16
  6. Step 6: Final answer
    x = 5,549.38

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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.