Home / 3,808.82-5,256.36-2,130.26

Finding the Fourth Proportional to 3,808.82, 5,256.36 and 2,130.26

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Solution

The fourth proportional to 3,808.82, 5,256.36 and 2,130.26 is: 2,939.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,808.82 : 5,256.36 = 2,130.26 : x
  2. Step 2: Convert to fraction form
    3,808.82/5,256.36 = 2,130.26/x
  3. Step 3: Cross multiply
    3,808.82x = 5,256.36 × 2,130.26
  4. Step 4: Simplify right side
    3,808.82x = 11,197,413.45
  5. Step 5: Solve for x
    x = 11,197,413.45/3,808.82
  6. Step 6: Final answer
    x = 2,939.86

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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.