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Finding the Fourth Proportional to 3,968.86, 5,477.41 and 2,200.46

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Solution

The fourth proportional to 3,968.86, 5,477.41 and 2,200.46 is: 3,036.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,968.86 : 5,477.41 = 2,200.46 : x
  2. Step 2: Convert to fraction form
    3,968.86/5,477.41 = 2,200.46/x
  3. Step 3: Cross multiply
    3,968.86x = 5,477.41 × 2,200.46
  4. Step 4: Simplify right side
    3,968.86x = 12,052,821.61
  5. Step 5: Solve for x
    x = 12,052,821.61/3,968.86
  6. Step 6: Final answer
    x = 3,036.85

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.