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Finding the Fourth Proportional to 5,809.94, 8,716.88 and 2,112.47

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Solution

The fourth proportional to 5,809.94, 8,716.88 and 2,112.47 is: 3,169.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,809.94 : 8,716.88 = 2,112.47 : x
  2. Step 2: Convert to fraction form
    5,809.94/8,716.88 = 2,112.47/x
  3. Step 3: Cross multiply
    5,809.94x = 8,716.88 × 2,112.47
  4. Step 4: Simplify right side
    5,809.94x = 18,414,109.19
  5. Step 5: Solve for x
    x = 18,414,109.19/5,809.94
  6. Step 6: Final answer
    x = 3,169.41

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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.