Home / 1,811.52-2,497.68-1,286.64

Finding the Fourth Proportional to 1,811.52, 2,497.68 and 1,286.64

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Solution

The fourth proportional to 1,811.52, 2,497.68 and 1,286.64 is: 1,773.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,811.52 : 2,497.68 = 1,286.64 : x
  2. Step 2: Convert to fraction form
    1,811.52/2,497.68 = 1,286.64/x
  3. Step 3: Cross multiply
    1,811.52x = 2,497.68 × 1,286.64
  4. Step 4: Simplify right side
    1,811.52x = 3,213,615.00
  5. Step 5: Solve for x
    x = 3,213,615.00/1,811.52
  6. Step 6: Final answer
    x = 1,773.99

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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.