Home / 1,791.42-2,688.70-1,244

Finding the Fourth Proportional to 1,791.42, 2,688.70 and 1,244

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Solution

The fourth proportional to 1,791.42, 2,688.70 and 1,244 is: 1,867.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,791.42 : 2,688.70 = 1,244 : x
  2. Step 2: Convert to fraction form
    1,791.42/2,688.70 = 1,244/x
  3. Step 3: Cross multiply
    1,791.42x = 2,688.70 × 1,244
  4. Step 4: Simplify right side
    1,791.42x = 3,344,742.80
  5. Step 5: Solve for x
    x = 3,344,742.80/1,791.42
  6. Step 6: Final answer
    x = 1,867.09

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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.