Home / 3,981.09-5,475.65-3,193.41

Finding the Fourth Proportional to 3,981.09, 5,475.65 and 3,193.41

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Solution

The fourth proportional to 3,981.09, 5,475.65 and 3,193.41 is: 4,392.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,981.09 : 5,475.65 = 3,193.41 : x
  2. Step 2: Convert to fraction form
    3,981.09/5,475.65 = 3,193.41/x
  3. Step 3: Cross multiply
    3,981.09x = 5,475.65 × 3,193.41
  4. Step 4: Simplify right side
    3,981.09x = 17,485,979.50
  5. Step 5: Solve for x
    x = 17,485,979.50/3,981.09
  6. Step 6: Final answer
    x = 4,392.26

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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.