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Finding the Fourth Proportional to 1,811.73, 2,499.13 and 1,025.62

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Solution

The fourth proportional to 1,811.73, 2,499.13 and 1,025.62 is: 1,414.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,811.73 : 2,499.13 = 1,025.62 : x
  2. Step 2: Convert to fraction form
    1,811.73/2,499.13 = 1,025.62/x
  3. Step 3: Cross multiply
    1,811.73x = 2,499.13 × 1,025.62
  4. Step 4: Simplify right side
    1,811.73x = 2,563,155.15
  5. Step 5: Solve for x
    x = 2,563,155.15/1,811.73
  6. Step 6: Final answer
    x = 1,414.76

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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.