Home / 1,806.48-2,711.27-1,287.75

Finding the Fourth Proportional to 1,806.48, 2,711.27 and 1,287.75

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Solution

The fourth proportional to 1,806.48, 2,711.27 and 1,287.75 is: 1,932.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,806.48 : 2,711.27 = 1,287.75 : x
  2. Step 2: Convert to fraction form
    1,806.48/2,711.27 = 1,287.75/x
  3. Step 3: Cross multiply
    1,806.48x = 2,711.27 × 1,287.75
  4. Step 4: Simplify right side
    1,806.48x = 3,491,431.50
  5. Step 5: Solve for x
    x = 3,491,431.50/1,806.48
  6. Step 6: Final answer
    x = 1,932.73

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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.