Home / 1,821.76-2,733.17-1,082.05

Finding the Fourth Proportional to 1,821.76, 2,733.17 and 1,082.05

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Solution

The fourth proportional to 1,821.76, 2,733.17 and 1,082.05 is: 1,623.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,821.76 : 2,733.17 = 1,082.05 : x
  2. Step 2: Convert to fraction form
    1,821.76/2,733.17 = 1,082.05/x
  3. Step 3: Cross multiply
    1,821.76x = 2,733.17 × 1,082.05
  4. Step 4: Simplify right side
    1,821.76x = 2,957,426.60
  5. Step 5: Solve for x
    x = 2,957,426.60/1,821.76
  6. Step 6: Final answer
    x = 1,623.39

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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.