Home / 5,149.19-7,107.62-3,661.42

Finding the Fourth Proportional to 5,149.19, 7,107.62 and 3,661.42

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Solution

The fourth proportional to 5,149.19, 7,107.62 and 3,661.42 is: 5,053.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,149.19 : 7,107.62 = 3,661.42 : x
  2. Step 2: Convert to fraction form
    5,149.19/7,107.62 = 3,661.42/x
  3. Step 3: Cross multiply
    5,149.19x = 7,107.62 × 3,661.42
  4. Step 4: Simplify right side
    5,149.19x = 26,023,959.27
  5. Step 5: Solve for x
    x = 26,023,959.27/5,149.19
  6. Step 6: Final answer
    x = 5,053.99

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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.