Home / 2,791.29-4,187.27-1,230.63

Finding the Fourth Proportional to 2,791.29, 4,187.27 and 1,230.63

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Solution

The fourth proportional to 2,791.29, 4,187.27 and 1,230.63 is: 1,846.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,791.29 : 4,187.27 = 1,230.63 : x
  2. Step 2: Convert to fraction form
    2,791.29/4,187.27 = 1,230.63/x
  3. Step 3: Cross multiply
    2,791.29x = 4,187.27 × 1,230.63
  4. Step 4: Simplify right side
    2,791.29x = 5,152,973.93
  5. Step 5: Solve for x
    x = 5,152,973.93/2,791.29
  6. Step 6: Final answer
    x = 1,846.09

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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.