Home / 3,610.82-4,982.96-2,118.77

Finding the Fourth Proportional to 3,610.82, 4,982.96 and 2,118.77

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Solution

The fourth proportional to 3,610.82, 4,982.96 and 2,118.77 is: 2,923.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,610.82 : 4,982.96 = 2,118.77 : x
  2. Step 2: Convert to fraction form
    3,610.82/4,982.96 = 2,118.77/x
  3. Step 3: Cross multiply
    3,610.82x = 4,982.96 × 2,118.77
  4. Step 4: Simplify right side
    3,610.82x = 10,557,746.16
  5. Step 5: Solve for x
    x = 10,557,746.16/3,610.82
  6. Step 6: Final answer
    x = 2,923.92

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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.