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Finding the Fourth Proportional to 4,086.44, 5,644.98 and 3,934.72

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Solution

The fourth proportional to 4,086.44, 5,644.98 and 3,934.72 is: 5,435.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,086.44 : 5,644.98 = 3,934.72 : x
  2. Step 2: Convert to fraction form
    4,086.44/5,644.98 = 3,934.72/x
  3. Step 3: Cross multiply
    4,086.44x = 5,644.98 × 3,934.72
  4. Step 4: Simplify right side
    4,086.44x = 22,211,415.71
  5. Step 5: Solve for x
    x = 22,211,415.71/4,086.44
  6. Step 6: Final answer
    x = 5,435.40

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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.