Home / 3,146.99-4,342.41-1,821.02

Finding the Fourth Proportional to 3,146.99, 4,342.41 and 1,821.02

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Solution

The fourth proportional to 3,146.99, 4,342.41 and 1,821.02 is: 2,512.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,146.99 : 4,342.41 = 1,821.02 : x
  2. Step 2: Convert to fraction form
    3,146.99/4,342.41 = 1,821.02/x
  3. Step 3: Cross multiply
    3,146.99x = 4,342.41 × 1,821.02
  4. Step 4: Simplify right side
    3,146.99x = 7,907,593.75
  5. Step 5: Solve for x
    x = 7,907,593.75/3,146.99
  6. Step 6: Final answer
    x = 2,512.75

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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.