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Finding the Fourth Proportional to 1,799.18, 2,700.11 and 1,790.81

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Solution

The fourth proportional to 1,799.18, 2,700.11 and 1,790.81 is: 2,687.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,799.18 : 2,700.11 = 1,790.81 : x
  2. Step 2: Convert to fraction form
    1,799.18/2,700.11 = 1,790.81/x
  3. Step 3: Cross multiply
    1,799.18x = 2,700.11 × 1,790.81
  4. Step 4: Simplify right side
    1,799.18x = 4,835,374.97
  5. Step 5: Solve for x
    x = 4,835,374.97/1,799.18
  6. Step 6: Final answer
    x = 2,687.55

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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.