Home / 7,180.05-9,908.48-3,993.26

Finding the Fourth Proportional to 7,180.05, 9,908.48 and 3,993.26

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Solution

The fourth proportional to 7,180.05, 9,908.48 and 3,993.26 is: 5,510.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,180.05 : 9,908.48 = 3,993.26 : x
  2. Step 2: Convert to fraction form
    7,180.05/9,908.48 = 3,993.26/x
  3. Step 3: Cross multiply
    7,180.05x = 9,908.48 × 3,993.26
  4. Step 4: Simplify right side
    7,180.05x = 39,567,067.34
  5. Step 5: Solve for x
    x = 39,567,067.34/7,180.05
  6. Step 6: Final answer
    x = 5,510.70

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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.