Home / 1,821.83-2,517.01-1,731.92

Finding the Fourth Proportional to 1,821.83, 2,517.01 and 1,731.92

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Solution

The fourth proportional to 1,821.83, 2,517.01 and 1,731.92 is: 2,392.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,821.83 : 2,517.01 = 1,731.92 : x
  2. Step 2: Convert to fraction form
    1,821.83/2,517.01 = 1,731.92/x
  3. Step 3: Cross multiply
    1,821.83x = 2,517.01 × 1,731.92
  4. Step 4: Simplify right side
    1,821.83x = 4,359,243.04
  5. Step 5: Solve for x
    x = 4,359,243.04/1,821.83
  6. Step 6: Final answer
    x = 2,392.79

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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.