Home / 3,153.97-4,352.39-1,809.81

Finding the Fourth Proportional to 3,153.97, 4,352.39 and 1,809.81

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Solution

The fourth proportional to 3,153.97, 4,352.39 and 1,809.81 is: 2,497.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,153.97 : 4,352.39 = 1,809.81 : x
  2. Step 2: Convert to fraction form
    3,153.97/4,352.39 = 1,809.81/x
  3. Step 3: Cross multiply
    3,153.97x = 4,352.39 × 1,809.81
  4. Step 4: Simplify right side
    3,153.97x = 7,876,968.13
  5. Step 5: Solve for x
    x = 7,876,968.13/3,153.97
  6. Step 6: Final answer
    x = 2,497.48

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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.