Home / 2,791.14-4,186.71-1,325.85

Finding the Fourth Proportional to 2,791.14, 4,186.71 and 1,325.85

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Solution

The fourth proportional to 2,791.14, 4,186.71 and 1,325.85 is: 1,988.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,791.14 : 4,186.71 = 1,325.85 : x
  2. Step 2: Convert to fraction form
    2,791.14/4,186.71 = 1,325.85/x
  3. Step 3: Cross multiply
    2,791.14x = 4,186.71 × 1,325.85
  4. Step 4: Simplify right side
    2,791.14x = 5,550,944.48
  5. Step 5: Solve for x
    x = 5,550,944.48/2,791.14
  6. Step 6: Final answer
    x = 1,988.77

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1.5x scale

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.