Home / 2,791.03-4,186.44-1,125.87

Finding the Fourth Proportional to 2,791.03, 4,186.44 and 1,125.87

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Solution

The fourth proportional to 2,791.03, 4,186.44 and 1,125.87 is: 1,688.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,791.03 : 4,186.44 = 1,125.87 : x
  2. Step 2: Convert to fraction form
    2,791.03/4,186.44 = 1,125.87/x
  3. Step 3: Cross multiply
    2,791.03x = 4,186.44 × 1,125.87
  4. Step 4: Simplify right side
    2,791.03x = 4,713,381.57
  5. Step 5: Solve for x
    x = 4,713,381.57/2,791.03
  6. Step 6: Final answer
    x = 1,688.76

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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.