Home / 5,149.19-7,105.94-2,791.34

Finding the Fourth Proportional to 5,149.19, 7,105.94 and 2,791.34

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Solution

The fourth proportional to 5,149.19, 7,105.94 and 2,791.34 is: 3,852.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,149.19 : 7,105.94 = 2,791.34 : x
  2. Step 2: Convert to fraction form
    5,149.19/7,105.94 = 2,791.34/x
  3. Step 3: Cross multiply
    5,149.19x = 7,105.94 × 2,791.34
  4. Step 4: Simplify right side
    5,149.19x = 19,835,045.07
  5. Step 5: Solve for x
    x = 19,835,045.07/5,149.19
  6. Step 6: Final answer
    x = 3,852.07

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1.5x scale

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.